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Calanoida ( Order ) |
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Diaptomoidea ( Superfamily ) |
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Pontellidae ( Family ) |
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Pontellopsis ( Genus ) |
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Pontellopsis macronyx A. Scott, 1909 (F,M) | |
| | | | | | | Syn.: | Pontellopsis herdmani : Sewell, 1912 (p.375, figs.F) | | | | Ref.: | | | A. Scott, 1909 (p.173, figs.F,M); Sewell, 1912 (p.375, Rem.F); 1932 (p.387, figs.F); Farran, 1936 a (p.118); Voronina, 1962 a (p.68); Kasturirangan, 1963 (p.57, 59, figs.F,M); Sherman, 1964 (p.481); Saraswathy, 1966 (1967) (p.84); Silas & Pillai, 1973 (1976) (p.841, Rem., figs.F,M); Pillai, 1975 (p.138, figs.M, Rem.); Chen & Shen, 1974 (p.131, figs.F,M); Zheng & al., 1982 [p.92, Figs.M); Ohtsuka & Onbé, 1991 (p.214); Chihara & Murano, 1997 (p.872, Pl.158,160: F,M); Mulyadi, 2002 (p.136, figs.F,M, Rem.); Conway & al., 2003 (p.137, figs.F,M, Rem.); Phukham, 2008 (p.96, figs.M) |  Issued from : R.B.S. Sewell in Rec. Indian Mus., 1912, 7. [Pl.XXIV, Fig.5]. As Pontellopsis herdmani. Female (from Bay of Bengal): 5, urosome.
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 Issued from : R.B.S. Sewell in Mem. Indian Mus., 1932, X (continued). [p.385, Fig.128, c]. Female (from N Indian): c, habitus (dorsal).
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 issued from : Q.-c Chen & C.-j. Shen in Studia Marina Sinica, 1974, 9. [p.131, Figs.29-34]. Female (from South China Sea): 29, habitus (dorsal), with spermatophore; 30, rostrum (frontal view); 31, P5. Male: 32, last thoracic segment and urosome (dorsal); 33, right A1; 34, P5.
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 issued from : A. Scott in Siboga-Expedition, 1909, XIX a. [Plate LIV, Figs.1-10]. Female (from Indonesian waters): 1, habitus (dorsal); 2, rostrum; 3, A1; 4, Mxp; 5, endopodite of P1; 6, P5. Nota: Abdomen 2-segmented. Genital segment slightly asymmetrical; A1 20-segmented, reaching the end of the thorax. Male: 7, last thoracic segment and urosome (dorsal); 8, right A1; 9, grasping segments of right A1; 10, P5.
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 issued from : E.G. Silas & P.P. Pillai in J. mar. biol. Ass. India, 1973 (1976), 15 (2). [p.841, Fig.30]. Female (from Indian Ocean): a, urosome (dorsal); b, P5. Nota: Genital segment asymmetrical, provided with 3 spines, 2 towards proximal dorsal side with a band of fine spinules at their bases on either side, 3rd spine situated at tip of a rounded eminence on right side; laterally genital segment provided with scattered setae. Anal lamina well developed, situated more towards right side. A1 16 -segmented. The genital segment shows slight variation from the form described by A. Scott (1909) in that were only 3 spines, the left disto-lateral spine being absent. Also, the bands of fine setules at the base of proximal spines of the genital segment observed in the present material have not been described so far Male: c, right A1 (geniculate part); d, P5. Scale as in Calanopia minor.
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 issued from : Z. Zheng, S. Li, S.J. Li & B. Chen in Marine planktonic copepods in Chinese waters. Shanghai Sc. Techn. Press, 1982 [p.93, Fig.53]. Male: a, habitus (dorsal); b, right lateral portion of segments 1-3 of urosome (dorsal); c, A1; d, P5. Scale bar in mm.
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 Issued from : R.B.S. Sewell in Rec. Indian Mus., 1912, 7. [p.375]. As Pontellopsis herdmani. Female: Characters of P. herdmani, P. macronyx and intermediate form. Nota: According to Sewell (1912, p.375), the differences between the two forms P. macronyx and herdmani, which was descibed by Thompson & Scott from Sri-Lanka and the waters to the east of Borneo, Scott was quite justified in making them different species, but the discovery of a third and intermediate form from the Burma coast indicates that in reality we are dealing with a single variable species. The author proposes to combine the three forms under the name of P. herdmani. From the comparison of characters, it would appear that we are dealing with another example of continuous variation, apparently affecting only the females of the species, for as the habitat extends to the westward we meet with a tendancy for a reduction of the niumber of spines on the genital segment of the abdomen, a fusion of certain segments at the base of A1, and the formation of a second spine on the left P5. The males correspond exactly with the description of P. macronyx, A. Scott (1909).
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 Issued from : R.B.S. Sewell in Rec. Indian Mus., 1912, 7. [p.376]. Female: Characters of P. herdmani, P. macronyx and intermediate form (from Bay of bengal).
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 issued from : Mulyadi in Treubia, 2002, 32; [p.137, Fig.50]. Female: a, habitus (dorsal); b, metasomal somite 5 and urosome (dorsal); c, P5. Male: d, habitus (dorsal); e, metasomal somite 5 and urosome (dorsal); f, P5.
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 issued from : N. Phukham in Species diversity of calanoid copepods in Thai waters, Andaman Sea (Master of Science, Univ. Bangkok). 2008. [p.180, Fig.54]. Male (from W Malay Peninsula): a, habitus (dorsal); b, right A1; c, urosome (dorsal); d, same (oblique view); e, P5. Body length after the drawing: M = 1.508 mm.
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 issued from : P.P. Pillai in J. mar. biol. Ass. India, 1975, 17 (2). [p.136, Fig.3, h]. Male (from Indian Ocean): h, P5. Scale: double bars: 0.05 mm.
| | | | | Compl. Ref.: | | | Sewell, 1948 (p.322); Patel, 1975 (p.660); Guangshan & Honglin, 1984 (p.118, tab.); Madhupratap & Haridas, 1986 (p.105, tab.1); Shih & Young, 1995 (p.72); Sharaf & Al-Ghais, 1997 (tab.1); Padmavati & al., 1998 (p.347); El-Serehy, 1999 (p.172, Table 1, occurrence); Shanthi & Ramanibai, 2011 (p.132, Table 1) | | | | NZ: | 5 | | |
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Distribution map of Pontellopsis macronyx by geographical zones
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| | | | | | | | |  issued from : P. Pillai in J. mar. biol. Ass. India, 1975, 17 (2). [p.142, Fig.8].
Occurrence of Pontellopsis regalis and P. macronyx collected from 32 stations in the Indian Ocean (See in Hand Book to the International Zooplankton Collections, volume I, 1969). |
| | | | Loc: | | | Arabian Sea, Arabian Gulf, UAE coast, Seychelles, Trivandrum coast, India (Saurashtra coast), G. of Bengal, W Malay Peninsula (Andaman Sea), Indonesia (Sunda Strait, Jakarta Bay, S Java, Lombok Strait), China Seas (East China Sea, South China Sea), Pacif. (W equatorial), Australia (Great Barrier), New Hebrides, Samoa Is., Pacif. (equatorial central) | | | | N: | 26 | | | | Lg.: | | | (5) F: 1,97; M: 1,67; (34) F: 2,04-1,68; (44) F: 1,733; (256) F: 1,94-1,8; M: 1,68-1,55; (334) F: 1,97-1,7; M: 1,67; (394) F: 2,1-1,82; M: 1,78-1,6; (530) M: 1,8; (991) F: 1,8-1,97; M: 1,55-1,68; (1023) M: 1,67-1,78; (1087) F: 1,8-1,9; M: 1,55-1,60; (1115) M: 1,78; {F: 1,68-2,10; M: 1,55-1,80} | | | | Rem.: | Neritic.
For Mulyadi (2002, p.138) female specimens differ from the original female described by A. Scott (1909) in having: 1- the urosomal segment 1 is short and bearing 2 spine-like processes on right side, anterior part with band of small spinules; 2- the left P5 without outer spines. Silas & Pillai (1973) noted the variations of processes on the urosomite 1 and the form of P5.
See in DVP Conway & al., 2003 (version 1) | | | Last update : 21/07/2016 | |
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 Any use of this site for a publication will be mentioned with the following reference :
Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed April 25, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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