197,036 research outputs found
Glyptothorax indicus Talwar 1991
No full textGlyptothorax indicus Talwar 1991 Glyptothorax horai Shaw & Shebbeare 1936: 188, pl. Type locality: Streams of Terai [Ganges drainage], n. Bengal. Holotype: ZSI F11376/1. Subjectively invalid; secondarily preoccupied in Glyptothorax by Pteroglanis horai Fowler 1934, replaced by Glyptothorax indicus Talwar 1991. Glyptothorax indicus Talwar in Talwar & Jhingran 1991: 654, fig. 210. Type locality: Streams of Terai [Ganges drainage], n. Bengal. Holotype: ZSI F11376/1. Replacement name for Glyptothorax horai Shaw & Shebbeare 1936, secondarily preoccupied in Glyptothorax by Pteroglanis horai Fowler 1934. Distribution: Ganges drainage, India and Nepal (Talwar & Jhingran, 1991; Jayaram, 1999; Menon, 1999).Published as part of Alfred W. Thomson & Lawrence M. Page, 2006, Genera of the Asian Catfish Families Sisoridae and Erethistidae (Teleostei: Siluriformes)., pp. 1-96 in Zootaxa 1345 on page 4
Sphenanthias whiteheadi Talwar 1973
No full textSphenanthias whiteheadi Talwar, 1973 (Figs. 2–3) Diagnosis. Dorsal fin rays IV, 22–23; Anal fin rays 1, 16; Pectoral fin rays 19–20; Pelvic fin rays I, 5; Lateral Line scales 39–41. Gill rakers 18–21+ 35–39. Vertebrae 28. Pelvic fins long in males reaching on to anal, black pigmentation between membrane of maxilla and premaxilla (Talwar, 1973). Description. Measurements are given in Table.1. Values of type specimens in Talwar, 1973 follows in parenthesis. Body compressed, elongated with tapering tails. Males larger than females. Head large, head length 26.1–31.8 % SL (25.7–30 % SL) 3.1–3.8 in SL (3.3–3.9 in SL), body depth at dorsal origin 22.8–28.5% SL (25.1–30.9% SL), eyes large, eye length (bony orbit) 6.1–11.6 % SL (8–9.4% SL), interorbital 5.5–6.8% SL (6–6.9 % SL), mouth large, lower jaw projecting, maxilla broad. Lower margin of preopercle serrated with 6–9 spines. Opercle with small scales. Lateral line runs close to dorsal fin base and ends at dorsal fin last rays mostly at 22 nd and 23 rd rays. LL scales (pored) 36–38. Teeth in upper jaw uniserial, teeth absent in symphysis of both jaws. Pelvic fins in males elongate (Fig.2) 43–48% SL (43.3–55.6% SL) females (Fig.3) 24.7–30 % SL (28.8–35.7 % SL). Pelvic fin proximal ray attached to body. Dorsal fin base 64–68.5% SL. The first two dorsal fin spines placed closer than other spines. Caudal fin elongate and lanceolate. Sphenanthias whiteheadi cannot be mistaken with Sphenanthias simoterus Smith 1968. S. simoterus having peculiar characters; D III, 21; A I, 14; GR 13+ 24, LL 46–48 (Smith, 1968). DNA analysis. A 652 bp of mitochondrial COI region was amplified bidirectionaly for one specimen. Utilization. The species is primarily used for consumption. Common name. Indian bandfish Remarks. The specimens of Sphenanthias whiteheadi were collected off the coast of Tuticorin in the Gulf of Mannar at a depth of 220–350m by deep-sea shrimp trawler. The holotype and three paratypes were collected at Quilon, north of Tuticorin, along the southeast coast of India. This species may prove to be more widespread along the Indian coast. (n=8)Published as part of Bineesh, K. K., Sajeela, K. A., Akhilesh, K. V., Pillai, N. G. K. & Abdussamad, E. M., 2011, Redescription of Sphenanthias whiteheadi Talwar (Perciformes: Cepolidae) with DNA barcodes from the southern coasts of India, pp. 64-68 in Zootaxa 3098 (1) on pages 66-67, DOI: 10.11646/zootaxa.3098.1.7, http://zenodo.org/record/524527
Owstonia whiteheadi Talwar
No full textOwstonia whiteheadi (Talwar) (Figures 86, 87) Sphenanthias whiteheadi Talwar, 1973:87, fig. 1 (original description; off Quilon, India, about 9°N, 76°E; depth 300 m); Bineesh et al., 2011:64, figs. 2‒4 (redescription of Sphenanthias whiteheadi). Owstonia whiteheadi Manilo and Bogorodsky, 2003:S112 (in list of Arabian Sea coastal fishes). Material examined. 2 specimens, 144‒158 mm SL: SAIAB 97707 (1, 157.5) and USNM 410300 (1, 144), India, SW coast near Quilon (Kerala), trawled in ca. 220‒ 350 m. Diagnosis. A species of Owstonia with LL pattern 3; dorsal fin IV, 21‒23; anal fin I, 15–16; oblique body scale rows in mid-lateral series 39‒41; adults with teeth in outer row of each premaxilla 39–45; adults with depressed pelvic fin extending to anal-fin soft rays 4‒15, depending on sex of specimen. Description. (Includes data of Talwar, 1972 and Bineesh et al., 2011.) A species of Owstonia with LL pattern 3, consisting of a simple lateral line that originates from posttemporal sensory canal near anterodorsal margin of gill opening, curves upward and backward then continues posteriorly just below dorsal-fin base to soft rays 18–23. Dorsal fin IV, 21–23; anal fin I, 15–16; pectoral fin 19–20; gill rakers 18–21 + 34–39 = 52–60. Vertebrae: precaudal 11, caudal 18, total 29; anal-fin pterygiophores anterior to 1st haemal spine 2. Oblique body scale rows in mid-lateral series about 39–41; nape scaly and cheek scale rows 3. Lower limb margin of preopercle with 7–11 moderate to strong spines. Papillae in slight depression behind tip of premaxillary ascending processes 4, arranged in 2 almost equally spaced pairs. Teeth in outer row of each premaxilla 39‒45, no inner teeth anteriorly. Teeth in lateral row of each dentary 21–26; symphyseal teeth 5‒6, relatively small, short, and spike-like, other dentary teeth conical with pointed tips, and with 0‒1 very small inner tooth anteriorly. Pelvic fin sexually dimorphic, depressed pelvic fin extending to anal-fin soft rays 4‒5 (females) and soft rays 14‒15 (males). Caudal fin lanceolate. In 7 specimens 140‒255 mm SL (including data from Bineesh et al., 2011), caudal fin 1.5‒2.0 times in SL; head 3.1‒3.8 times in SL; body depth at anal-fin origin 4.0‒5.0 times in SL. Color pattern in alcohol: Adults with dorsal fin uniformly pale; membrane connecting maxilla and premaxilla with prominent black stripe extending to near anterior end of premaxilla, and inner membrane covering posterior part of dentary also black. In life, body and fins mostly crimson (distal third to half of dorsal and anal fins of some females may be orange-yellow) except for black premaxillary stripe and white elongate outermost pelvic-fin ray in large males. Proportions of 2 specimens 144‒158 mm SL (also pelvic fin measurements of Talwar, 1972 and Bineesh et al., 2011 for 6 females 144‒240 mm SL and 5 males 140–255 mm SL), as percentages of SL: predorsal length 23.9‒24.8; preanal length 47.8‒53.8; dorsal-fin base 64.5‒68.7; anal-fin base 31.9‒36.2; pelvic-fin length 24.7– 35.7 (females) and 39.8‒55.6 (males); caudal-fin length 48.8‒65.4; body depth at anal-fin origin 23.4‒24.8; head length 29.5‒30.1; upper jaw length 13.6‒14.7; upper jaw depth 6.5‒7.1; orbit diameter 10.0‒11.2. As percentages of head length: upper jaw length 45.0‒49.8; orbit diameter 33.3‒38.0. Comparisons. Owstonia whiteheadi is the only Indian Ocean species with IV dorsal-fin spines. Owstonia whiteheadi superficially resembles O. weberi but in addition to a different lateral-line pattern, O. weberi has fewer dorsal-fin spines III (vs. IV), anal-fin soft rays 13–14 (vs. 15–16) and adults with teeth in outer row of each premaxilla 15–21 (vs. 39–45). Other congeners with IV dorsal-fin spines differ (values for O. whiteheadi in parentheses) as follows: O. fallax and O. hastata have anal-fin ray counts of I, 16‒17 or II, 14 (vs. I, 15–16), fewer total gill rakers 40–46 (vs. 52–60) and precaudal vertebrae and anal-fin pterygiophores anterior to 1st haemal spine 13 and 5 respectively (vs. 11 and 2); O. sibogae has fewer oblique body scale rows in mid-lateral series 27–29 (vs. 39–41), larger cheek scales, in 3 rows (vs. 4–5), and more precaudal vertebrae and anal-fin pterygiophores anterior to 1st haemal spine 12 and 4 respectively (vs. 11 and 2); O. macrophthalma has more anal-fin soft rays 17–18 (vs.15–16), more anal-fin pterygiophores anterior to 1st haemal spine 3 (vs. 2), and fewer total gill rakers 49–50 (vs. 52–60). Owstonia contodon differs in having more anal-fin rays II, 16 (vs. I, 15–16), oblique body scale rows in mid-lateral series ca. 48–53 (vs. 39–41), and anal-fin pterygiophores anterior to 1st haemal spine 3 (vs. 2). Etymology. Named for the British ichthyologist Peter J. P. Whitehead (1930‒1992); see Howes (1997) for a particularly interesting obituary of this enigmatic and productive biologist. Distribution. (Fig. 27) Known only from off the southern tip of India in the Gulf of Mannar where taken by shrimp trawlers in 220‒ 350 m. Remarks. Talwar (1973) and Bineesh et al. (2011) both documented sexual dimorphism of pelvic fins in O. whiteheadi, with the depressed fins extending beyond anal-fin origin in both sexes and to anal-fin soft rays 14 or 15 in large males. According to Eschmeyer et al. (2016), the holotype of Sphenanthias whiteheadi (ZSI F6276/2) is deposited in the Zoological Survey of India collection in Kolkata.Published as part of Smith-Vaniz, William F. & Johnson, David, 2016, Hidden diversity in deep-water bandfishes: review of Owstonia with descriptions of twenty-one new species (Teleostei: Cepolidae: Owstoniinae), pp. 1-103 in Zootaxa 4187 (1) on pages 95-96, DOI: 10.11646/zootaxa.4187.1.1, http://zenodo.org/record/16530
Owstonia whiteheadi Talwar
No full textOwstonia whiteheadi (Talwar) (Figures 86, 87) Sphenanthias whiteheadi Talwar, 1973:87, fig. 1 (original description; off Quilon, India, about 9°N, 76°E; depth 300 m); Bineesh et al., 2011:64, figs. 2‒4 (redescription of Sphenanthias whiteheadi). Owstonia whiteheadi Manilo and Bogorodsky, 2003:S112 (in list of Arabian Sea coastal fishes). Material examined. 2 specimens, 144‒158 mm SL: SAIAB 97707 (1, 157.5) and USNM 410300 (1, 144), India, SW coast near Quilon (Kerala), trawled in ca. 220‒ 350 m. Diagnosis. A species of Owstonia with LL pattern 3; dorsal fin IV, 21‒23; anal fin I, 15–16; oblique body scale rows in mid-lateral series 39‒41; adults with teeth in outer row of each premaxilla 39–45; adults with depressed pelvic fin extending to anal-fin soft rays 4‒15, depending on sex of specimen. Description. (Includes data of Talwar, 1972 and Bineesh et al., 2011.) A species of Owstonia with LL pattern 3, consisting of a simple lateral line that originates from posttemporal sensory canal near anterodorsal margin of gill opening, curves upward and backward then continues posteriorly just below dorsal-fin base to soft rays 18–23. Dorsal fin IV, 21–23; anal fin I, 15–16; pectoral fin 19–20; gill rakers 18–21 + 34–39 = 52–60. Vertebrae: precaudal 11, caudal 18, total 29; anal-fin pterygiophores anterior to 1st haemal spine 2. Oblique body scale rows in mid-lateral series about 39–41; nape scaly and cheek scale rows 3. Lower limb margin of preopercle with 7–11 moderate to strong spines. Papillae in slight depression behind tip of premaxillary ascending processes 4, arranged in 2 almost equally spaced pairs. Teeth in outer row of each premaxilla 39‒45, no inner teeth anteriorly. Teeth in lateral row of each dentary 21–26; symphyseal teeth 5‒6, relatively small, short, and spike-like, other dentary teeth conical with pointed tips, and with 0‒1 very small inner tooth anteriorly. Pelvic fin sexually dimorphic, depressed pelvic fin extending to anal-fin soft rays 4‒5 (females) and soft rays 14‒15 (males). Caudal fin lanceolate. In 7 specimens 140‒255 mm SL (including data from Bineesh et al., 2011), caudal fin 1.5‒2.0 times in SL; head 3.1‒3.8 times in SL; body depth at anal-fin origin 4.0‒5.0 times in SL. Color pattern in alcohol: Adults with dorsal fin uniformly pale; membrane connecting maxilla and premaxilla with prominent black stripe extending to near anterior end of premaxilla, and inner membrane covering posterior part of dentary also black. In life, body and fins mostly crimson (distal third to half of dorsal and anal fins of some females may be orange-yellow) except for black premaxillary stripe and white elongate outermost pelvic-fin ray in large males. Proportions of 2 specimens 144‒158 mm SL (also pelvic fin measurements of Talwar, 1972 and Bineesh et al., 2011 for 6 females 144‒240 mm SL and 5 males 140–255 mm SL), as percentages of SL: predorsal length 23.9‒24.8; preanal length 47.8‒53.8; dorsal-fin base 64.5‒68.7; anal-fin base 31.9‒36.2; pelvic-fin length 24.7– 35.7 (females) and 39.8‒55.6 (males); caudal-fin length 48.8‒65.4; body depth at anal-fin origin 23.4‒24.8; head length 29.5‒30.1; upper jaw length 13.6‒14.7; upper jaw depth 6.5‒7.1; orbit diameter 10.0‒11.2. As percentages of head length: upper jaw length 45.0‒49.8; orbit diameter 33.3‒38.0. Comparisons. Owstonia whiteheadi is the only Indian Ocean species with IV dorsal-fin spines. Owstonia whiteheadi superficially resembles O. weberi but in addition to a different lateral-line pattern, O. weberi has fewer dorsal-fin spines III (vs. IV), anal-fin soft rays 13–14 (vs. 15–16) and adults with teeth in outer row of each premaxilla 15–21 (vs. 39–45). Other congeners with IV dorsal-fin spines differ (values for O. whiteheadi in parentheses) as follows: O. fallax and O. hastata have anal-fin ray counts of I, 16‒17 or II, 14 (vs. I, 15–16), fewer total gill rakers 40–46 (vs. 52–60) and precaudal vertebrae and anal-fin pterygiophores anterior to 1st haemal spine 13 and 5 respectively (vs. 11 and 2); O. sibogae has fewer oblique body scale rows in mid-lateral series 27–29 (vs. 39–41), larger cheek scales, in 3 rows (vs. 4–5), and more precaudal vertebrae and anal-fin pterygiophores anterior to 1st haemal spine 12 and 4 respectively (vs. 11 and 2); O. macrophthalma has more anal-fin soft rays 17–18 (vs.15–16), more anal-fin pterygiophores anterior to 1st haemal spine 3 (vs. 2), and fewer total gill rakers 49–50 (vs. 52–60). Owstonia contodon differs in having more anal-fin rays II, 16 (vs. I, 15–16), oblique body scale rows in mid-lateral series ca. 48–53 (vs. 39–41), and anal-fin pterygiophores anterior to 1st haemal spine 3 (vs. 2). Etymology. Named for the British ichthyologist Peter J. P. Whitehead (1930‒1992); see Howes (1997) for a particularly interesting obituary of this enigmatic and productive biologist. Distribution. (Fig. 27) Known only from off the southern tip of India in the Gulf of Mannar where taken by shrimp trawlers in 220‒ 350 m. Remarks. Talwar (1973) and Bineesh et al. (2011) both documented sexual dimorphism of pelvic fins in O. whiteheadi, with the depressed fins extending beyond anal-fin origin in both sexes and to anal-fin soft rays 14 or 15 in large males. According to Eschmeyer et al. (2016), the holotype of Sphenanthias whiteheadi (ZSI F6276/2) is deposited in the Zoological Survey of India collection in Kolkata.Published as part of Smith-Vaniz, William F. & Johnson, David, 2016, Hidden diversity in deep-water bandfishes: review of Owstonia with descriptions of twenty-one new species (Teleostei: Cepolidae: Owstoniinae), pp. 1-103 in Zootaxa 4187 (1) on pages 95-96, DOI: 10.11646/zootaxa.4187.1.1, http://zenodo.org/record/16530
The effects of co-channel interference on spatial diversity techniques
No full textThe authors would like to thank the research staffs in Intel
Korea R&D Center (iKRC) for system level simulation results
Fully Dynamic All-Pairs Shortest Paths: Breaking the O(n) Barrier
No full textA fully dynamic approximate distance oracle is a distance reporting data structure that supports dynamic insert edge and delete edge operations. In this paper we break a longstanding barrier in the design of fully dynamic all-pairs approximate distance oracles.
All previous results for this model incurred an amortized cost of at least Omega(n) per operation. We present the first construction that provides constant stretch and o(m) amortized update time. For graphs that are not too dense (where |E| = O(|V|^{2-delta}) for some delta>0 we break the O(n) barrier and provide the first construction with constant stretch and o(n) amortized cost
Redescription of Sphenanthias whiteheadi Talwar (Perciformes: Cepolidae) with DNA barcodes from the southern coasts of India
No full textA very rare bandfish, Sphenanthias whiteheadi Talwar 1973, is re-discovered and described from the southwest and southeast
coasts of India for the first time after its original description and the rarity of the fish is challenged. A mitochondrial
COI barcode sequence was generated for the specimen
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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