236 research outputs found
Eurydice mohani Anil & Jayaraj 2023, sp. nov.
No full text<i>Eurydice mohani</i> sp. nov. <p>(Figures 6–9)</p> <p> <i>Material examined</i></p> <p> <i>Holotype.</i> Male (3.5 mm), sta. Corbyns Cove (low-tide zone), 11.37′483°N, 92.45′140°E, South Andaman, Andaman Islands, intertidal sand, coll. Pathan Anil, 18 November 2016 (Reg. no. PUMB 3585).</p> <p> <i>Paratypes.</i> 1 male (3.4 mm), 3 females (3.3, 3.4, 3.4 mm), same data as holotype (Reg. no. PUMB 3586). 1 male (3.4 mm), 2 females (3.3, 3.4 mm): sta Marina Park (low-tide zone), 11.40′18°N, 092.44′58°E, South Andaman, Andaman Islands, intertidal sand, coll. Pathan Anil, 9 December 2016 (Reg. no. PUMB 3587; Reg. no. BAKRZRL 2704, 2705).</p> <p> <i>Description of male holotype.</i> Body about 2.3 times as long as greatest width; maximum width at pereonites 4 and 6. Cephalon anterior median margin weakly produced, with minute rostral point. Eyes prominent. Coxae 2–3 posteriorly sub-acute with minute setae, posterolateral angles of coxae 6–7 acute with minute setae, not produced. Pleonite 1 concealed by pereonite 7, ventral margins of pleonites 2–4 produced with acute points. Pleotelson about 82% as long as pleon in lateral view; lateral distal margins are sinuate; pleotelson posterior margin 20% of pleotelson anterior width, convex, subtruncate with 6 PMS and 4 RS, dorsally with minute thin setae; anterodorsal surface without distinct depression.</p> <p>Antennula peduncle article 1 anteriorly with 1 simple, 1 pappose setae; article 2 slightly shorter (0.83 times) than 3; article 2 posterodistal angle with 2 simple, 1 pappose setae, anterodistal angle with 1 simple seta; article 3 anterodistal angle with 4 simple short setae; flagellum about 0.8 times as long as peduncle, with 5 articles, article 1 of which is longest, about 1.7 times as long as article 2; flagellum extending to anterior of pereonite 1. Antenna peduncle article 1 dorsal posterior margin with 1 seta, article 2 anterodistal angle with 2 slender simple setae; article 3 short and wide, about 0.9 times as long as wide and about 1.5 times as long as article 2, anterior margin with 8 simple long setae, posterior distal margin with 1 simple long seta; article 4 longest about 2.3 times as long as 3, anterior margin with 4 clusters of 2, 2, 2 and 2 simple long setae, posterior margin with 3 long simple setae and 1 brush-tipped seta; flagellum extending to mid-pereonite 5, composed of about 12 articles.</p> <p>Frontal lamina distinct; clypeus blade prominent. Mandible spine row with 7 spines; molar process anterior margin with about 21 teeth; article 2 with 4 simple long setae; article 3 apically with 3 simple long setae. Maxillule lateral lobe with 12 RS, medial lobe with 3 CPS and 1 simple seta. Maxilla lateral lobe with 3 stiff simple setae, middle lobe with 5 weakly serrate setae, medial lobe with 5 simple setae and 3 CPS. Maxilliped article 2 medial distal margin with 5 long setae, lateral margin with 1 long seta; article 3 medial distal margin with 4 long setae, lateral margin with 1 long seta; article 4 medial distal margin with 4 long setae, lateral margin with 1 long seta; article 5 apically 6 long setae; endite with 1 CPS and 3 simple setae.</p> <p>Pereopod 1 basis 3.3 times as long as greatest width, superior proximal margin with 3 small sensory palmate setae, distal margin with 3 long setae, inferior margin with 10 long setae; ischium 0.7 times as long as basis, superior distal margin with 8 long setae, dorsal posterior margin with 3 long setae, inferior margin with 8 long setae; merus inferior margin with 3 RS and 7 long setae, dorsal medial margin with 2 simple long setae and 1 short RS, superior distal margin with 6 long setae; carpus inferior margin with 1 RS and 6 simple long setae; propodus 3.8 times as long as width, inferior margin with 3 RS and 9 long setae; dactylus about half as long as propodus, robust seta opposing dactylus extending to accessory unguis; accessory unguis slender, 0.8 times length of unguis.</p> <p>Pereopod 2 basis about 3.9 times as long as wide, superior margin with 3 small sensory palmate setae, inferior distal angle with 18 long setae; ischium 2.2 times as long as basis, inferior margin with 2 RS and 11 long setae,dorsal posterior margin with 4 long setae,superior distal margin with 8 long setae; merus inferior margin with 5 RS and 9 long setae, superior distal angle with 8 long setae; carpus inferior distal angle with 2 RS and 5 long setae;propodus 4.1 times as long as width, inferior margin with 3 RS and 8 long setae, dorsal posterior margin with 1 short RS; dactylus about half as long as propodus; robust seta opposing dactylus extending to accessory unguis; accessory unguis 0.9 times length of unguis.</p> <p>Pereopod 3 basis superior margin with 3 small sensory palmate setae, inferior margin with 13 long setae; ischium inferior margin with 2 RS and 12 long setae, dorsal medial margin with 5 long setae, superior distal angle with 9 long setae; merus inferior margin with 6 RS and 9 long setae, superior distal angle with 7 long setae; carpus inferior distal angle with 2 RS and 5 long setae; propodus inferior margin with 3 RS and 10 long setae; dactylus less than half as long as propodus; robust seta opposing dactylus extending near to accessory unguis. Pereopods 5–7 similar to each other.</p> <p>Pereopod 6 basis 5.6 times as long as wide, superior margin with 2 small sensory palmate setae and 6 long setae, inferior margin with 13 long setae; ischium 0.8 times as long as basis, inferior margin with 15 RS and 11 long setae, superior margin with 4 RS and 11 long setae; merus 0.5 times as long as ischium, 1.8 times as long as wide, inferior margin with 5 RS and 2 long setae, superior margin with 4 RS and 7 long setae; carpus 0.9 times as long as ischium, 2.5 times as long as wide, inferior margin with 6 RS, 1 uni-serrate seta and 1 long seta, superior margin with 5 RS, 1 uni-serrate seta and 4 simple long setae; propodus 0.6 times as long as ischium, 4.9 times as long as wide, inferior margin with 10 RS and 2 long setae, superior margin with 5 RS and 4 long setae; dactylus 0.6 times as long as propodus.</p> <p>Pereopod 7 basis 5.8 times as long as wide, superior margin with 4 small sensory palmate setae and 3 long setae, inferior margin with 10 long setae and 1 long uni-serrate seta; ischium 0.9 times as long as basis, inferior margin with 7 RS and 11 long setae, superior margin with 3 RS and 9 long setae; merus 0.7 times as long as ischium, 1.9 times as long as wide, inferior margin with 4 RS, 3 bi-serrate setae and 3 long setae, superior margin with 2 bi-serrate setae, 1 RS and 5 long setae; carpus 0.9 times as long as ischium, 2.7 times as long as wide, inferior margin with 6 RS, 1 bi-serrate seta and 6 long setae, superior margin with 7 RS, 1 uni-serrate seta and 4 long setae; propodus 0.8 times as long as ischium, 5.1 times as long as wide, inferior margin with 14 RS and 1 bi-serrate seta, superior margin with 10 RS and 8 long setae.</p> <p>Penes 1.6 times as long as basal width, distal margin rounded.</p> <p>Pleopod 1 exopod 1.6 times as long as wide, lateral margin weakly convex, distally narrowly rounded with oblique medial margin, mesial margin strongly convex, with PMS from distal one-fourth, with 20 PMS; endopod 2.2 times as long as wide, distally narrowly rounded, lateral margin weakly convex, with PMS from distal one-third, mesial margin with PMS from distal one-sixth, endopod with 10 PMS; peduncle 0.8 times as wide as long, mesial margin with 4 coupling setae, 2 plumose setae and 1 short setae. Pleopod 2 exopod with 20 PMS, endopod with 9 PMS; appendix masculina arises from medial margin of the endopod, lateral margin with a sinuate notch and apex is rounded, appendix masculina 0.4 times as long as endopod, projecting beyond mid-region of endopod by 0.02 of its length. Pleopod 3 exopod with 20 PMS, endopod with 9 PMS. Pleopod 4 exopod with 24 PMS, endopod with 8 PMS. Pleopod 5 exopod with 22 PMS. Pleopods 3–5 exopods with complete sutures.</p> <p>Uropod peduncle lateral margin with 5 stiff PMS and 1 RS; exopod rounded, about 0.9 times as long as length of endopod lateral margin, medial margin with about 12 PMS and 3 RS; endopod lateral margin straight, with 2 setae, medial margin obliquely truncate, with 2 small RS and 20 PMS.</p> <p> <i>Female.</i> As for male but body slightly broader, about 1.5 times as long as greatest width; antennulae shorter reaching mid-region of the eye; antennae shorter, reaching posterior margin of pereonite 4; pleotelson about 80% as long as pleon in lateral view.</p> <p> <i>Colour.</i> Body white; black chromatophores occur densely on the dorsal surface of the pereion, pleon and pleotelson.</p> <p> <i>Remarks.</i> <i>Eurydice mohani</i> sp. nov. can be identified by the pleotelson posterior margin being 20% of pleotelson anterior width, with 6 plumose marginal setae, anterodorsal surface without distinct depression; appendix masculina 0.4 times as long as endopod, projecting beyond mid-region of endopod by 0.02 of its length, lateral margin with a sinuate notch and apex is rounded; the antennal flagellum is relatively short, extending to mid-length of pereonite 5.</p> <p> <i>Eurydice mohani</i> sp. nov. is separated from <i>Eurydice andamanensis</i> sp. nov. by the antennula flagellum extending to anterior of pereonite 1 (vs posterior of pereonite 1), posterior margin of pleotelson one-fifth of pleotelson anterior width, with 6 plumose marginal setae (vs one-fourth and 11 plumose marginal setae), pleotelson anterodorsal surface without distinct depression (vs distinct depression), appendix masculina lateral margin with a sinuate notch (vs lacking), appendix masculina 0.4 times as long as endopod, projecting beyond mid-region of endopod by 0.02 of its length (vs 0.8 long as endopod, projecting slightly beyond by one-third of its length), uropodal exopod medial margin rounded (vs obliquely subtruncate).</p> <p> <i>Eurydice mohani</i> sp. nov. is similar to <i>Eurydice barnardi</i> Bruce and Soares, 1996, which was described from the Atlantic coast of South Africa and shares some characters such as cephalon anterior median margin with minute rostral point, coxae 2–3 posteriorly sub-acute, posterolateral angles of coxae 6–7 acute, not produced, and pleotelson anterodorsal surface without depression, but <i>E. mohani</i> sp. nov. differs from <i>E. barnardi</i> in the pleotelson posterior margin 20% of width (vs 5% of width), pleotelson posterior margin with 4 robust setae and 6 plumose marginal setae (vs 2 robust setae and 3 plumose marginal setae), appendix masculina lateral margin with sinuate notch (vs lacking).</p> <p> <i>Eurydice mohani</i> sp. nov. can be separated from <i>Eurydice indicis</i> by convex pleotelson posterior margin, with 6 plumose marginal setae (vs straight with 8 plumose marginal setae), pleotelson anterodorsal surface without distinct depression (vs distinct depression), appendix masculina lateral margin with sinuate notch (vs lacking notch).</p> <p> <i>Eurydice mohani</i> sp. nov. also differs from <i>Eurydice peraticis</i> in pleotelson posterior margin convex with 6 plumose marginal setae (vs almost straight with 13 plumose marginal setae), appendix masculina lateral margin with sinuate notch (vs lacking notch).</p> <p> <i>Distribution.</i> Known only from the type locality: South Andaman, Andaman Islands.</p> <p> <i>Etymology.</i> This species is named in honour of Dr P.M. Mohan, Professor, Department of Ocean Studies and Marine Biology, Pondicherry Central University, the DC member of the first author (Pathan Anil) and a well-known benthologist, taxonomist and ecologist in India.</p>Published as part of <i>Anil, Pathan & Jayaraj, K. A., 2023, Two new species of Eurydice Leach, 1815 (Crustacea: Isopoda: Cirolanidae) from the Andaman Islands, northern Indian Ocean, pp. 976-995 in Journal of Natural History 57 (13 - 16)</i> on pages 986-993, DOI: 10.1080/00222933.2021.2017046, <a href="http://zenodo.org/record/8221408">http://zenodo.org/record/8221408</a>
Corallana mishrai Anil & Bruce & Jayaraj 2022, sp. nov.
No full text<i>Corallana mishrai</i> sp. nov. <p>(Figs 3–7)</p> Material examined (all South Andaman, Andaman Islands) <p> <b>Holotype.</b> 1♂ (13.5 mm), stn. Kodiyaghat, 11°31′699′′N; 92°43′432′′E, intertidal (brackish reaches of creek), coll. Pathan Anil, 6 July 2018 (Reg. no. PUMB 3599).</p> <p> <b>Paratypes.</b> 2♂ (12.0, 13.0 mm), 1♀ (11 mm), same data as holotype (Reg. no. PUMB 35100). 1♂ (12.3 mm), stn. Burmanallah, 11°33′261′′N; 92°43′963′′E, intertidal (brackish reaches of creek), coll. Pathan Anil, 7 July 2018 (Reg. no. PUMB 35101). 1♂ (13.0 mm), 1♀ (10.5 mm), stn. Chidiyatapu, 11°29′55′′N; 092°42′50′′ E, intertidal (brackish reaches of creek), coll. Pathan Anil, 10 July 2018 (Reg. no. PUMB 35102). 1♂ (13.4 mm), stan. Manjery, 11°58’33’’N; 92°66’67’’E, intertidal, coll. Pathan Anil, 12 July 2018 (Reg. no. PUMB 35103).</p> <p> <b>Description of male holotype</b> (Figs 3–7)</p> <p> <i>Body</i> 2.6 times as long as greatest width, widest at pereonite 5, lateral margins subparallel. <i>Eyes</i> separated by about 64% width of head; eye colour black. Pereon and coxae sparsely setose. <i>Cephalon</i> bearing 1 pair of tubercles between eyes, transverse row of 6 tubercles present on pereonite 1, and 4 small sub-lateral tubercles on posterior margin of pereonite 5. <i>Pereonite 6</i> lateral margins drawn out into large posterior projecting lobes, 2 smaller submedial lobes bordering shallow dorsal concavity; inner two smaller straight sub-medial lobes posterior margins projecting. <i>Pereonite 7</i> also with one pair of conspicuous tubercles on posterior margin. Pereonite 1 and coxae 2–3 each with posteroventral angle slightly rounded with partial oblique carina; 4–7 with partial oblique carinae and posteroventral angles progressively produced. <i>Pleon</i> with pleonite 1 concealed by pereonite 7; pleonites 2, 3 and 4 with lateral tubercles absent on posterior margins; lateral margins of pleonite 4 overlapping and concealing lateral margins of pleonite 5. <i>Pleotelson</i> anteriorly wider than long, length 0.76 greatest width, lateral margins bisinuate, terminating in bluntly rounded apex, both margins and apex setose, apex bearing 5 RS.</p> <p> <i>Antennula</i> peduncular article 1 strongly expanded, projecting anteriorly, visible in dorsal view and inferior distal margin with three long setae; article 2 short, 0.25 length of article 1, superior medial margin with single short seta, distal margin with 3 plumose setae and single short seta; article 3 2.2 times as long as wide, 0.21 as long as article 2, superior medial margin with two short setae and inferior medial margin with two short setae; flagellum with 12 articles, extending to anterior of pereonite 1.</p> <p> <i>Antenna</i> peduncle article 2 1.7 times as long as wide, 1.3 as long as article 1, superior margin with short setae; article 3 1.6 times as long as wide, 1.2 as long as article 2, superior distal margin with 3 long setae; article 4 2 times as long as wide, 2.8 times as long as article 3, superior margin with 5 short setae, single plumose seta, dorsal distal margin with single plumose seta and inferior margin with 4 short setae; article 5 2.4 times as long as wide, 3 times as long as article 4, superior distal margin with 2 simple short setae and inferior distal margin with single plumose seta; flagellum with 22 articles, extending to pereonite 3.</p> <p> <i>Frontal lamina</i> conspicuous, 1.4 times as wide as long, with short straight (or very weakly convex) lateral margins, anterior margin forming strong acute median point; <i>clypeus</i> more than twice as broad as frontal lamina with lateral margins rounded and produced posteriorly to encompass labrum.</p> <p> <i>Mandible</i> well developed with bidentate incisor and vestigial molar process; palp arising basally and just exceeding tip of mandible in length, article 2 2.3 times as long as articles 1 and 3 which are subequal; articles 2, 3 lateral distal margins with 8, 12 setae respectively.</p> <p> <i>Maxillula</i> exopod hook-shaped terminating in single spine. <i>Maxilla</i> with 3 apical setae.</p> <p> <i>Maxilliped</i> article 2 mesial distal angle with small setae, single long slender seta; article 3 longer than combined length of articles 4 and 5, mesial distal angle with small hair like setae, 5 long slender setae, laterodistal angle with single long slender seta; article 4 mesial distal angle with 3 short slender setae; article 5 apex with 4 setae.</p> <p> <i>Pereopod 1</i> basis 2.5 times as long as greatest width, superior margin with 2 plumose setae and many short setae, superior proximal dorsal margin with 3 plumose setae, distal margin with 3 long setae and inferior distal margin with 3 long setae; ischium 0.6 times as long as basis, superior distal margin with 3 long setae, inferior medial margin with 3 short setae and distal margin with 2 blunt spines, 4 short setae; merus superior distal margin with 3 long setae, inferior margin with 6 blunt spines, 7 long setae; carpus inferior distal margin with single spine and 2 long setae; propodus 2.9 times as long as wide, superior margin with 4 short setae, inferior margin with 2 spines, 4 long setae; dactylus 1.3 as long as propodus, superior distal margin with 3 short setae, inferior margin with single seta; dactylus without secondary unguis.</p> <p> <i>Pereopod 2</i> basis 2.9 times as long as greatest width, superior margin with 2 plumose setae and 7 short setae, superior dorsal surface with 4 plumose setae and many short setae, inferior margin with 8 long setae; ischium 0.9 times as long as basis, superior margin with 3 long, 1 short seta, inferior medial margin with 3 short setae and distal margin with 4 blunt spines, 3 long setae; merus superior distal margin with 3 long setae, inferior margin with 7 blunt spines, 5 long setae; carpus inferior distal margin with single spine, single long seta; propodus 3.2 times as long as wide, superior margin with 5 short, 1 long seta, inferior margin with 2 spines, 4 long setae; dactylus 1.5 as long as propodus, superior distal margin with 3 short setae, inferior margin with single seta; dactylus without secondary unguis. Pereopod 3 essentially similar to pereopod 2.</p> <p> <i>Pereopods</i> 4 and 5 similar.</p> <p> <i>Pereopod 6</i> basis 2.6 times as long as greatest width, superior margin with single plumose seta, many short setae, superior dorsal surface with 3 plumose setae, 4 short setae and inferior margin with 8 short, 2 long setae; ischium 0.7 as long as basis, superior distal margin with 3 RS, inferior margin with 9 RS; merus 1.6 times as long as wide, 0.9 as long as ischium, superior distal margin with 2 biserrate setae, 2 RS, inferior distal margin with 5 RS; carpus 1.8 times as long as wide, 0.9 as long as ischium, superior medial margin with 5 short setae, distal margin with 3 biserrate setae, 2 RS, inferior distal margin with 6 RS; propodus 2.6 times as long as wide, 1.1 as long as ischium, superior margin with 6 short setae, inferior margin with 3 RS; dactylus 0.6 as long as propodus, superior distal margin with two short setae.</p> <p> <i>Pereopod 7</i> basis 2.9 times as long as greatest width, superior margin with 10 long setae, superior dorsal surface with 2 plumose setae, 5 short setae and inferior distal margin with 6 long setae; ischium 0.9 times as long as basis, superior distal margin with 2 biserrate setae, 2 RS, inferior margin with 8 RS, 3 short setae; merus 2.0 times as long as wide, 1.2 times as long as ischium, superior margin with 2 RS and 6 long setae, inferior margin with 6 RS, 4 long setae; carpus 1.9 times as long as wide, 1.0 times as long as ischium, superior medial margin with 5 long setae, distal margin with 3 uni-serrated setae, 4 biserrate setae and single RS, inferior margin with 4 RS, 3 long setae; propodus 3.0 times as long as wide, 1.4 times as long as ischium, superior distal margin with 4 short, 3 long setae, inferior margin with 5 RS; dactylus 0.8 times as long as propodus.</p> <p> <i>Pleopod 1</i> exopod 1.7 times as long as wide, lateral margin convex, distally narrowly rounded, mesial margin weakly convex, with PMS from distal one-third, with ~23 PMS; endopod 2.2 times as long as wide, distally subtruncate, lateral margin weakly concave, with PMS from distal one-third, mesial margin with PMS from distal one-third, endopod with ~14 PMS; peduncle 1.7 times as wide as long, mesial margin with 4 coupling setae, 2 plumose setae.</p> <p> <i>Pleopod 2</i> exopod with ~26 PMS, endopod with ~16 PMS; <i>appendix masculina</i> with parallel margins, 0.9 times as long as endopod, distally narrowly rounded. <i>Pleopods</i> 3–5 endopods without setae; <i>pleopod 3</i> exopod with ~23 PMS; <i>pleopod 4</i> exopod with ~21 PMS; <i>pleopod 4</i> exopod with ~17 PMS. Pleopods 2–5 peduncle distolateral margin with prominent acute RS. Pleopods 3–5 exopods with incomplete transverse suture.</p> <p> <i>Uropodal exopod</i> 7 times longer than greatest width, extending beyond endopod by one fourth of its length, lateral margin smooth, weakly convex with 3 RS and PMS along length, apex horizontal slightly rounded and mesial margin smooth, straight with 2 RS and PMS along length; <i>endopod</i> lateral margin slightly convex with 4 RS and PMS, apex forms a slightly obtuse angle with long simple setae, mesial margin weakly convex with 2 RS and PMS along length.</p> <p> <b>Female.</b> Females differ from males in having a less setose body; tubercles absent from cephalon and pereonite 1; 2 small tubercles only on posterior margin of pereonite 5, 4 small tubercles present on posterior margin of pereonite 6; posterior margin with weak median dorsal concavity. Otherwise, apart from sexual characters, similar to the male.</p> <p> <b>Variation.</b> Pleotelson (<i>n</i> = 8) always with 5 RS; uropod (all <i>n</i> = 16) exopod mesial margin with 2 RS (100%), lateral margin with 2–3 RS (3=93.8%, 2=6.2%); uropod endopod lateral margin with 4–5 RS (4=71.3%, 5=28.7%), mesial margin with 2 RS (100%).</p> <p> <b>Colour.</b> Body light brown with brick-red coloured chromatophores on dorsal surface of pereon, pleon and telson.</p> <p> <b>Remarks.</b> <i>Corallana mishrai</i> <b>sp. nov.</b> can be identified by the frontal lamina with short straight (or very weakly convex) lateral margins and the anterior margin forming a strong acute median point; pleotelson length 0.76 greatest width, with five robust setae on the posterior margin; the uropodal exopod is seven times longer than greatest width, extending beyond endopod by one fourth of its length; endopod lateral margin slightly convex with four robust setae and PMS, apex forms a slightly obtuse angle with long simple setae, mesial margin weakly convex with two robust setae and PMS; bidentate mandible; transverse row of six tubercles present on pereonite 1 and pleonites 2, 3 and 4 lacking lateral tubercles.</p> <p> <i>Corallana mishrai</i> <b>sp. nov.</b> appears similar to <i>C. nodosa</i> Schioedte & Meinert, 1879, from the Philippines, but <i>Corallana mishrai</i> <b>sp. nov.</b>, differs to that species in having a frontal lamina with short straight (or very weakly convex) lateral margins and the anterior margin forming a strong acute median point (<i>vs</i> lateral margins that diverge anteriorly, with a single anterior margin that is strongly concave in <i>C. nodosa,</i> see Fig. 2F), a median transverse row of six tubercles on pereonite 1(<i>vs</i> absent on pereonite 1 in <i>C. nodosa</i>).</p> <p> <i>Corallana mishrai</i> <b>sp. nov.</b> differs from <i>C. estuaria</i> Jones <i>et al.</i> 1983 from Papua New Guinea, in the pleotelson apex bearing five robust setae (<i>vs</i> 11–12 robust setae in <i>C. estuaria</i>), uropod endopod apex forming a slightly obtuse angle with six robust setae on lateral and mesial margins (<i>vs</i> acute angle with eight robust setae on outer and inner margins in <i>C. estuaria</i>), uropod exopod seven times longer than greatest width, extending beyond endopod by one fourth of its length (<i>vs</i> six times longer than greatest width, extending beyond endopod by one third of its length in <i>C. estuaria</i>), frontal lamina conspicuous, 8.0 times wider than long with large anterior acute medial point (<i>vs</i> inconspicuous, 6.0 times wider than long with small anterior medial point in <i>C. estuaria</i>).</p> <p> Based on frontal lamina shape <i>Corallana mishrai</i> <b>sp. nov.</b> differs from <i>C. basalis</i> Heller, 1868; <i>C. brevipes</i> Schioedte & Meinert, 1879; <i>C. collaris</i> Schioedte & Meinert, 1879; <i>C. hirticauda</i> (Dana, 1853); <i>Corallana</i> sp. (Delaney, 1989); <i>C. furcilla</i> (Barnard, 1955); <i>C. nodosa</i> (Schioedte & Meinert, 1879; Delaney, 1989); <i>C. tridentata</i> Jones Icely & Cragg, 1983 (see Fig. 2G); and presence of cephalic tubercles clearly distinguishes <i>Corallana mishrai</i> <b>sp. nov.</b> from <i>C. hirsuta</i> Schioedte & Meinert, 1879.</p> <p> <b>Distribution.</b> Known only from the type locality, South Andaman, Andaman Islands.</p> <p> <b>Etymology.</b> This species is named in honour of eminent marine biologist Professor Dr. Jayant Kumar Mishra, Department of Ocean Studies and Marine Biology, Pondicherry University.</p>Published as part of <i>Anil, Pathan, Bruce, Niel L. & Jayaraj, K. A., 2022, A new species of Corallana Dana, 1852 (Crustacea: Isopoda: Corallanidae) from the Andaman Islands, northern Indian Ocean, pp. 357-371 in Zootaxa 5087 (2)</i> on pages 362-369, DOI: 10.11646/zootaxa.5087.2.6, <a href="http://zenodo.org/record/5824204">http://zenodo.org/record/5824204</a>
A critical assessment of technical advances in pharmaceutical removal from wastewater – A critical review
Get PDFUse of pharmaceutical products has seen a tremendous increase in the recent decades. It has been observed that more than thirty million tons of pharmaceuticals are consumed worldwide. The used pharmaceutical products are not completely metabolized in human and animal body. Therefore, they are excreted to the environment and remain there as persistent organic chemicals. These compounds emerge as toxic contaminants in water and affect the human metabolism directly or indirectly. This literature review is an endeavour to understand the origin, applications and current advancement in the removal of pharmaceuticals from the environment. It discusses about the pharmaceuticals used in medical applications such diagnosis and disease treatment. In addition, it discusses about the recent approaches applied in pharmaceutical removal including microbial fuel cells, biofiltration, and bio nanotechnology approaches. Moreover, the challenges associated with pharmaceutical removal are presented considering biological and environmental factors. The review suggest the potential recommendations on pharmaceutical removal.The corresponding author Prof. Vinay Kumar is thankful to all the co-authors for their collaborative efforts in writing this paper. This work was supported by Department of Community Medicine, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India.Peer reviewe
Immunohistochemical expression of X-linked inhibitor of apoptosis in eyelid sebaceous gland carcinoma predicts a worse prognosis
No full textPurpose: Overexpression of the inhibitors of apoptosis proteins have been demonstrated in a variety and of solid tumors including melanomas and nonmelanomas skin cancers. X-linked inhibitor of apoptosis protein (XIAP) is an inhibitor of apoptosis which prevents apoptosis by inhibiting caspases 9, 7, and 3. The prognostic value of XIAP in sebaceous gland carcinoma (SGC) remains unexplored. Methods: The immunohistochemical expression of XIAP was evaluated in 29 SGC cases. Results: The cytoplasmic overexpression of XIAP was detected in 62% SGC cases. XIAP expression was found to be significantly associated with advanced age, large tumor size, and with reduced disease-free survival (P = 0.0174). XIAP expression and advance tumor Grade III emerged as significant risk factors on univariate analysis. On stepwise multivariate analysis, both increased cytoplasmic XIAP expression and high tumor grade were found to be significantly associated with recurrence. Patients with low XIAP immunoexpression had a longer disease-specific survival than those with high expression in the 5-year follow-up. Conclusion: The present study demonstrates at the immunohistochemical level that XIAP is overexpressed in SGC and that high expression could be of biological significance in the development of eyelid SGC. Our finding suggests that up-regulation of XIAP may aggravate tumor metastasis in SGC
Internet Usage among Graduate Students of Institutions of Higher Learning - The Role of Questions in Initial Web Search Strategy
Get PDFThis research employs both qualitative and quantitative methodology to analyze differences between graduate students studying in four leading public universities and their choice of initial Web search strategies (direct address, subject directory, and search engines) and their reasoning underlying these choices
Guest rotations within a capsuleplex probed by NMR and EPR techniques
No full textWith the help of 1H NMR and EPR techniques, we have probed the dynamics of guest molecules included within a water-soluble deep cavity cavitand known by the trivial name octa acid. All guest molecules investigated here form 2:1 (host/guest) complexes in water, and two host molecules encapsulate the guest molecule by forming a closed capsule. We have probed the dynamics of the guest molecule within this closed container through 1H NMR and EPR techniques. The timescales offered by these two techniques are quite different, millisecond and nanosecond, respectively. For EPR studies, paramagnetic nitroxide guest molecules and for 1H NMR studies, a wide variety of structurally diverse neutral organic guest molecules were employed. The guest molecules freely rotate along their x axis (long molecular axis and magnetic axis) on the NMR timescale; however, their rotation is slowed with respect to that in water on the EPR timescale. Rotation along the x axis is dependent on the length of the alkyl chain attached to the nitroxide probe. Overall rotation along the y or z axis was very much dependent on the structure of the guest molecule. The guests investigated could be classified into three groups: (a) those that do not rotate along the y or z axis both at room and elevated (55 °C) temperatures, (b) those that rotate freely at room temperature, and (c) those that do not rotate at room temperature but do so at higher temperatures. One should note that rotation here refers to the NMR timescale and it is quite possible that all molecules may rotate at much longer timescales than the one probed here. A slight variation in structure alters the rotational mobility of the guest molecules
Removal of chromium (III) by two-aqueous phases extraction
Get PDFTwo-aqueous phase extraction of chromium (III) as a solute from their aqueous solutions was investigated using polyethoxylated alcohols (CiEj) as a biodegradable non-ionic surfactant in the presence of anionic sodium dodecylbenzene sulfonate (SDBS). First, the combined effects of chromium and surfactants mixture (anionic and non-ionic) on the cloud point temperature were determined. After this, the phase diagrams of binary systems water–surfactant (NW342 and C10E3) were traced. According to the given surfactants concentration, the extracted solute reached 98.5% and 60% for NW342 and C10E3, respectively at pH equal to 3. The addition of sodium chloride lowers the cloud point temperature of surfactant where the phenomenon of salting-out was pronounced. Under the optimal extraction conditions, the suggested extraction mechanism is based on chromium species-NW342 non-ionic surfactant micelles solvatation. Since, the prevalence species (93.82%) were Cr(III)4(OH)66+, given by a theoretical calculation using CHEAQS V. L20.1. The first stage regeneration of NW342 surfactant was 27.82% at pH equal to 4.23 factorial designs were employed for screening the factors that would influence the overall optimization of a batch procedure of sorption
Scientific maps and innovation: impact of the human genome map on drug discovery
No full textScientific mapping projects like the ongoing US BRAIN initiative and Human Cell Atlas are data and resource intensive endeavors that curate immense amounts of information. While both public and private funds support such mapping of the scientific knowledge landscape, the impact of such projects on innovation is not well understood. Innovation can be conceptualized as a spatial process, where firms and inventors search either locally or in distant, lesser explored, territories. In my dissertation, I asked whether scientific maps influence technological search, and if so how. To address this empirically, I chose the Human Genome Project (HGP) as my context and asked how it affected drug discovery. HGP, the largest publicly-funded biology project, released the complete human genome map in 2000, enabling scientists to identify and focus on disease-causing genes as targets for drug discovery. Using a novel dataset of chemistry drug patents, I tracked firm search processes pre- and post-HGP. To measure how the HGP map impacts firm exploration, I also developed a novel method based on chemical similarities to capture search trajectories over time. My conclusions on how the HGP map influenced inventive activity, innovation strategy and outcomes are detailed in three essays and build on existing theories in the innovation literature. Briefly, I found that the HGP map increased the rate of novel compound production, exploration and impacted firm innovation strategies. This was influenced by prior firm knowledge, market competition and product market specialization. This study informs on mechanisms by which basic science driven scientific maps influence industry innovation. My findings bear implications on public policy, R&D management and firm strategy.Ph.D.Includes bibliographical referencesby Sebastian Jayara
Differential Diagnosis of Transient Left Ventricular Dysfunction in a Critically Ill Patient
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