Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Pontellidae ( Family )
            Pontellopsis ( Genus )
Pontellopsis herdmani  Thompson & Scott, 1903   (F,M)
Syn.: no Pontellopsis herdmani : Sewell, 1912 (p.375, figs.F, Rem.)
Thompson & Scott, 1903 (p.236, 253, Descr.F, figs.F); Sewell, 1914 a (p.238, Rem.); 1932 (p.385, figs.F); 1948 (p.324); Kasturirangan, 1963 (p.57, figs.F); Saraswathy, 1966 (1967) (p.84); Silas & Pillai, 1973 (1976) (p.843, Descr.M, figs.F,M, Rem.); Greenwood, 1979 (p.109, figs.F, Rem.); Kimmerer & al., 1985 (p.428); Bradford-Grieve, 1999 b (p.208, figs.F, fig. 194); Mulyadi, 2002 (p.128, figs.F, Rem.); Othman & Toda , 2006 (p.316, figs.F,M); Al-Yamani & al., 2011 (p.78, figs.F,M)
Species Pontellopsis herdmani - Plate 1 of morphological figuresissued from : J.G. Greenwood in Proc. R. Soc. Qd, 1979, 90. [p.108, Fig.9].
Female (from Moreton Bay, E Australia): a, habitus (dorsal); b, urosome (dorsal); c, urosome (dorsal); d, posterior part of thorax and urosome (lateral right side); d, P5.

Species Pontellopsis herdmani - Plate 2 of morphological figuresIssued from : R.B.S. Sewell in Mem. Indian Mus., 1932, X (continued). [p.385, Fig.128, a-b].
Female (from N Indian): a, habitus (dorsal); b, P5.

Species Pontellopsis herdmani - Plate 3 of morphological figuresissued from : E.G. Silas & P.P. Pillai in J. mar. biol. Ass. India, 1973 (1976), 15 (2). [p.843, Fig.31].
Female (from Gulf of Manaar): a, urosome (dorsal); b, P5.

Male (from South Kerala Coast): c, urosome (dorsal); d, right A1 (distal part); e, P5.
Nota: Posterior corners of Th5 modified into a rounded lobe on its left side and into an acuminate long spine on its right side, which is directed ventrad and curved inwards; tip of this process reaches mid-margin of ouosomal segment 3. Urosomal segment 1 with 2 small spinuous setae at its right distal margin. Urosomal segment 2 not modified. Urosomal segment 3 with a prominent projection at its right margin beset with small denticles. caudal rami asymmetrical, left ramus broader than long, while right ramus is longer than broad. Right A1 geniculate, segment 14 with a moderately long spine with a flagellum at its tip; segment 17 with a dorsal plate, finely serrated; segment 18 with dorsal denticles more triangular and well packed; segment 19 of fusion segment 19-21 with 5-7 flagellum like setae arranged radially. P5 bears a close resemblance to that of P. krameri; right leg with a chela, thumb of chela is long, exceeds length of claw and is serrated at its apex; inner margin of hand with a triangular protuberance; claw more or less straight, with striated outer margin; it is proximally thicker and tapers to apex; inner margin of claw with 2 setae and with another seta at its apex. Left P5 with terminal segment carrying 2 subequal spines distally and 1 outer marginal spine; inner margin with a band of setae; subterminal segment with a disto-lateral spine.
Scale as in Calanopia minor.

Remarks: The present material differs from the original description of this species by Thompson & Scott (1953) in that, the genital segment has 1 dorsal and 1 right lateral spine instead of 2 thorn-like projection on the left side. Sewell (1912, p.375) described a form 'intermediate' between P. herdmani and P. macronyx and commented that these are different forms of a single variable species; latter (1935, p.388-390) he dscribed this 'intermediate' form as P. scotti. The male of this species, which remained undescribed so far shows cose resemblance to that of P. krameri; the diagnostic characters of the P5 separates this species from the former.

Species Pontellopsis herdmani - Plate 4 of morphological figuresissued from : Mulyadi in Treubia, 2002, 32; [p.129, Fig.47].
Female (from S Java): a, habitus (dorsal); b, metasomal somite 5 and urosome (dorsal) from another specimen c, metasomal segment 5 and urosome (lateral); d, urosome (ventral); e, P5.

Nota: The present female differs from the female figured by Thompson & Scott (1903), Silas & Pillai (1973), Greenwood (1979) in having: the urosomal somite 1 has 2 unequal processes on anterior part, 1 spine-like process on right posterior margin, and 1 rounded process on left posterior margin; the P5 almost symmetrical with 3 outer spines and bifurcated apex.

Species Pontellopsis herdmani - Plate 5 of morphological figuresissued from : B.H.R. Othman & T. Toda in Coast. Mar. Sc., 2006, 30 (1). [p.316, Fig.20];
Female (from Sisters Island, Singapore): A, habitus (dorsal); F, P5.

Male: B, habitus (dorsal); C, thoracic segment 5 and urosome (dorsal); D, right A1; E, P5.

Nota: Female: Prosome to urosome length ratio 2.86 : 1.
- Cephalon and 1st thoracic segment separated, broadly rounded with small projection over base of rostrum, 4th and 5th thoracic segments fused, produced posteriorly into acute processes, slightly asymmetrical, right process slightly longer.
- Urosome 2-segmented, asymmetrical.
- Genital segment asymmetrical, left margin slightly swollen near distal end, right distal margin projected postero-laterally into an acutiform process, proximal margin with setule-like projection.
- P5 asymmetrical, right leg slightly longer, exopod with 2 small outer marginal spines a,d bifurcated at apex; endopod bifid at tip, both rami curved inwards.

Nota Male: Prosome to urosome length ratio 3.15 : 1.
- Cephalon and 1st pedigerous somite separated, 4th and 5th fused, posterior thoracic corners asymmetrical, left broadly triangular extending beyond middle of genital segment, right acuminate curving inwards reaching distal end of urosomite 3.
- Urosome 5-segmented.
-Genital segment broader than long with 2 setae on distal right margin.
- Urosomite 3 with a prominent lobe on right margin, crowned with spinules at apex.
- A1 geniculate, segment 13-17 enlarged, serrated plates present on anterior margins of segments 17 and 18, base of fused segments 19-21 with serially arranged spines.
- P5 asymmetrical, right leg chelate, exopodal segment 1 with an elongated thumb, exceeding length of claw, curved at the proximal, and is serrated at apex; exopodal segment 2 inner margin with 2 setae and another seta at apex; left leg, short, terminal segment with 2 subequal spine at apex, 1 outer marginal seta, inner margin hirsute.

Species Pontellopsis herdmani - Plate 6 of morphological figuresissued from : Y. Al-Yamani, V. Skryabin, A. Gubanova, S. khvorov & I. Prusova in Marine Zooplankton Practical Guide for the Northwestern Arabian Gulf, 2, 2011. [p.79, Fig.211]
Female (from Kuwait): a-b, habitus (dorsal and lateral, respectively); c, urosome (right lateral view).

Species Pontellopsis herdmani - Plate 7 of morphological figuresissued from : Y. Al-Yamani, V. Skryabin, A. Gubanova, S. khvorov & I. Prusova in Marine Zooplankton Practical Guide for the Northwestern Arabian Gulf, 2, 2011. [p.79, Fig.212].
Male: a-b, habitus (dorsal and lateral, respectively).

Compl. Ref.:
Krishnaswamy, 1953 (p.137); Subbaraju & Krishnamurphy, 1972 (p.25, 26 ); Patel, 1975 (p.660); Grice & Gibson, 1978 (p.23, tab.8); Sarkar & al., 1986 (p.178); Madhupratap & Haridas, 1986 (p.105, tab.1); Mitra & al., 1990 (fig.3); Othman & al., 1990 (p.561, 564, Table 1); Sharaf & Al-Ghais, 1997 (tab.1); Achuthankutty & al., 1998 (p.1, Table 2, seasonal abundance vs monsoon); Mauchline, 1998 (tab.8); El-Serehy, 1999 (p.172, Table 1, occurrence); McKinnon & al., 2008 (p.844: Tab.1, p.848: Tab. IV); Cornils & al., 2010 (p.2076, Table 3); Jagadeesan & al., 2013 (p.27, Table 3, seasonal abundance)
NZ: 4

Distribution map of Pontellopsis herdmani by geographical zones
Species Pontellopsis herdmani - Distribution map 2issued from : C.T. Achuthankutty, N. Ramaiah & G. Padmavati in Pelagic biogeography ICoPB II. Proc. 2nd Intern. Conf. Final report of SCOR/IOC working group 93, 9-14 July 1995. Workshop Report No. 142, Unesco, 1998. [p.8, Fig.6].
Salinity ranges for P. herdmani in coastal and estuarine waters of Goa (India).
Shaded area indicates the range of higher abundance.
Arabian Sea, Arabian Gulf, UAE coast, Kuwait, G. of Mannar, N Indian, India (Goa, Saurashtra coast, Porto Novo, Madras, Gulf of Mannar, Palk Bay, Mandarmani creek, Hooghly estuary), Bay of Bengal, Straits of Malacca (Singapore), Indonesia (Sunda Strait, S. Java, SW Celebes), Viet-Nam (Cauda Bay), Australia (Moreton Bay, Shark Bay, North West Cape, G. of Carpentaria)

Type locality: Galle Harbour & off Kavarativ Island, Gulf of Mannar.
N: 26
(44) F: 2,111; (77) F: 1,9; (256) F: 2,32-1,92; M: 2-1,76; (334) F: 1,9; (471) F: ± 2,14; (530) F: 2; (795) F: 2; (1085) F: 1,7-2,1; M: 1,5-1,9; (1086) F: 1,53-1,7; M: 1,44-1,62; (1087) F: 1,9-2,0; {F: 1,53-2,32; M: 1,44-2,00}
Rem.: epipelagic, neritic.
Bradford-Grieve, 1999 b (p.208) does not hold the validity of the male.
Last update : 07/02/2020
    to add your remark

 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., 2005-2021. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed June 25, 2021]

© copyright 2005-2021 Sorbonne University, CNRS

CNRS   Observatoire Océanologique de Banyuls sur Mer - Laboratoire Arago
Sorbonne Université


Version française
English version



On the WEB of CNRS


Marine Planktonic Copepods

Marine Planktonic Copepods


Imprimer Contact Accueil Plan du site Accès restreint Retour Une du Labo Imprimer Contact Plan du site Crédits Téléchargez les Plug-Ins