Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Pontellidae ( Family )
            Pontellopsis ( Genus )
Pontellopsis perspicax  (Dana, 1849)   (F,M)
Syn.: Pontella perspicax Dana,1849;
Pontellina perspicax Dana,1853;
Monops perspicax Giesbrecht,1889; 1892 (p.486, 496, 773, figs.F,M).
Pontellopsis perpicans : Ayon & al., 2008 (p.238, Table 4: Peruvian samples, lapsus calami);
Ref.:
Giesbrecht & Schmeil, 1898 (p.147, Rem. F,M); Thompson & Scott, 1903 (p.236, 253); A. Scott, 1909 (p.171, Rem.); Sewell, 1914 a (p.239); Farran, 1929 (p.210, 280); Sewell, 1932 (p.387); Mori, 1937 (1964) (p.97, figs.F); Wilson, 1942 a (p.204, fig.F); Sewell, 1947 (p.251); Paiva, 1963 (p.73, figs.F,M); Vervoort, 1965 (p.192, Rem.); Owre & Foyo, 1967 (p.98, figs.F,M); Kos, 1972 (Vol. I, figs.F,M, Rem.); Silas & Pillai, 1976 (p.840, Rem.); Björnberg & al., 1981 (p.660, figF,M); Chahsavar-Archad & Razouls, 1982 (p.32, fig.M); Pillai, 1977 (1982) (p.64, fig.F, Rem.); Baessa-de-Aguiar, 1991 (1993) (p.97, figs.F); Bradford-Grieve & al., 1999 (p.885, 960, figs.F,M); Mulyadi, 2002 (p.139, figs.M, Rem.); Phukham, 2008 (p.97, figs.M); Suarez-Morales & Kozak, 2012 (p.1, key F,M: p.14, fig.F,M).
Species Pontellopsis perspicax - Plate 1 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.41, Fig.59]. As Monops perspicax.
Female: 59, habitus (dorsal).


Species Pontellopsis perspicax - Plate 2 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.41, Fig.49]. As Monops perspicax.
Female: 49, Th5 and urosome (dorsal).


Species Pontellopsis perspicax - Plate 3 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.26, Fig.30]. As Monops perspicax.
Female: 30, P5 (posterior view).


Species Pontellopsis perspicax - Plate 4 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.41, Fig.44]. As Monops perspicax.
Male: 44, Th5 and urosome (dorsal).


Species Pontellopsis perspicax - Plate 5 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.26, Fig.15]. As Monops perspicax.
Male: 15, P5 (anterior view).


Species Pontellopsis perspicax - Plate 6 of morphological figuresissued from : P.P. Pillai in J. mar. biol. Ass. India, 1977 (1982), 19 (1-2). [p.62, Fig.2, h].
Female: h, P5.


Species Pontellopsis perspicax - Plate 7 of morphological figuresissued from : T. Mori in The pelagic Copepoda from the neighbouring waters of Japan, 1937 (2nd edit., 1964). [Pl.46, 1-5].
Female (Saishu Strait): 1, habitus (dorsal); 2, A1; 3, A2; 4, P5; 5, P1.
Nota: The ventral lens is produced into the ball-like knob, between the rostral filaments. Urosome 2-segmented; anal segment short with a flap on the posterior end. Caudal rami nearly symmetrical. P5 symmetrical


Species Pontellopsis perspicax - Plate 8 of morphological figuresissued from : T. Mori in The pelagic Copepoda from the neighbouring waters of Japan, 1937 (2nd edit., 1964). [Pl.45, Fig.9].
Female: 9, habitus (lateral).


Species Pontellopsis perspicax - Plate 9 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.41, Fig.55].
Female: 55, forehead (lateral).
R = rostrum.


Species Pontellopsis perspicax - Plate 10 of morphological figuresissued from : Mulyadi in Treubia, 2002, 32; [p.140, Fig.51].
Male (from Flores Sea): a, habitus (dorsal); b, metasomal somite 5 and urosome (dorsal); c, right A1; d, P5.


Species Pontellopsis perspicax - Plate 11 of morphological figuresissued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. 1967. [p.98, Fig.705].
Male: 705, habitus (dorsal).


Species Pontellopsis perspicax - Plate 12 of morphological figuresissued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. 1967. [p.28, Fig.132].
Male: 132, P5.


Species Pontellopsis perspicax - Plate 13 of morphological figuresissued from : N. Phukham in Species diversity of calanoid copepods in Thai waters, Andaman Sea (Master of Science, Univ. Bangkok). 2008. [p.181, Fig.55].
Male (from W Malay Peninsula): a-b, habitus (dorsal and lateral, respectively); c, urosome (dorsal); d, P5.

Body length after the drawing: M = 1.477 mm.


Species Pontellopsis perspicax - Plate 14 of morphological figuresIssued from : J.M. Bradford-Grieve, E.L. Markhaseva, C.E.F. Rocha & B. Abiahy in South Atlantic Zooplankton, edit. D. Boltovskoy. 1999, Vol. 2, Copepoda; [p.1073, Fig. 7.403: ]. Ur = urosome; r = right leg; l = left leg; l male P5 = left distal segment of male P5.

Female characters (from key, p.960):
- Urosome distinctly of 2 somites.
- Genital segment with naked, globular projection on right; anal somite projecting posteriorly as far as posterior border of caudal rami.

Male characters (from key, p.961):
Posterior prosome corners asymmetrical.
- Left posterior prosome corner extending to posterior border of urosomal segment 2; right corner exyte,ding to posterior border of anal somite; urosomal segment 3 asymmetrically developed on right.
- Urosomal segment 3 with large, naked protuberance on right side.

Compl. Ref.:
Sewell, 1948 (p.419, 460); C.B. Wilson, 1950 (p.310); Björnberg, 1963 (p.61, Rem.); Brodsky, 1972 (p.256); Heinrich, 1974 (p.43, fig.2); Weikert, 1975 (p.142, chart); Turner & al., 1979 (p.289, 292, Tab.3, Rem.); Hernandez-Trujillo, 1989 (tab.1); 1989 a (tab.1); Cervantes-Duarte & Hernandez-Trujillo, 1989 (tab.3); Suarez & al., 1990 (tab.2); Baessa De Aguiar, 1991 (1993) (p.107); Hernandez-Trujillo, 1991 (1993) (tab.I); Suarez, 1992 (App.1); Suarez-Morales, 1998 (p.345, Table 1); Suarez-Morales & Gasca, 1998 a (p.111); Neumann-Leitao & al., 2008 (p.799: Tab.II, fig.6, as P. perspicax); Schnack-Schiel & al., 2010 (p.2064, Table 2: E Atlantic subtropical/tropical); Medellin-Mora & Navas S., 2010 (p.265, Tab. 2); Maiphae & Sa-ardrit, 2011 (p.641, Table 2, 3, Rem.); Palomares-Garcia & al., 2018 (p.178, Table 1: occurrence)
NZ: 14

Distribution map of Pontellopsis perspicax by geographical zones
Species Pontellopsis perspicax - Distribution map 2Issued from : A.K. Heinrich inTrudy Inst. Okeanol., 1974, 98 [p.44, Fig.2].
Distibution of four species of Pontellidae from SW Atlantic (Cruise of the R/V 'Akademik Kurchatov' 1971 and 1972).
Points = stations; square= Pontella atlantica ; asterisk= Pontella marplatensis ; triangle= Pontella securifer; circle = Pontellopsis perspicax.
Loc:
South Africa, off Angola, G. of Guinea (off Liberia), Atlant. (tropical), Brazil (S-N), off Trinidad Is., off Amazon, Dakar, Cape Verde Is., Barbados Is., Caribbean Sea, Caribbean Colombia, Yucatan (Ascension Bay), G. of Mexico, Cuba, Florida, Arabian Sea, Sri Lanka, Indian, W Malay Peninsula (Andaman Sea), G. of Thailand, Indonesia (Bali Sea, Lombok Is., Philippines, Gulf of Tonkin, S Japan, Bikini Is., off W Baja California, La Paz (Mexico), Peru (in IMARPE unpublished)
N: 46
Lg.:
(16) F: 2,72-2,7; M: 2,25; (35) F: 2,8-2,6; M: 2,4; (46) F: 3; M: 2,5; (73) F: 2,88; M: 2,42-2,33; (91) F: 3,7; (237) ?F: 1,85; 2,8; (276) M: 2,6-2,432; (807) F: 4,25-3,9; (1087) M: 1,80; (1230) F: 3,7; M: 3,25; {F: 2,60-4,25; M: 1,80-3,25}
The body length 1,80 mm is probably a lapsus calami for 2,80 ?
Rem.: epipelagic, neritic-oceanic.
The species was descibed by Dana from the middle of the tropical South Atlantic.
For Björnberg (1963, p.61) the species were taken from 03°33'S, 33°32'W and 01°30'S, 34°16'W.
According to Vervoort (1965, p.193) the locality records from the Aleutians by C.B. Wilson (1950) require confirmation.
Last update : 13/11/2020
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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 October 18, 2021]

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