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Marine Planktonic Copepods
Pontoptilus robustus  Sars, 1905   (F,M)
Taxonomy
Order Calanoida
Superfamily Arietelloidea
Family Augaptilidae

References

Sars, 1905 c (p.19, Rem.M); 1925 (p.315, Desc.M, figs.M); Grice & Hulsemann, 1967 (p.19, 37, Descr.F, figs.F); Vives & Shmeleva, 2007 (p.271, figs.F,M, Rem.)

Figures

Plate 1 issued from : G.D. Grice & K. Huisemann in Proc. U.S. natn. Mus., 1967, 122 (3583). [p.62, Figs.248-250; p.63, Figs.251-258].
Female (from Indian Ocean): 248, habitus (dorsolateral left side); 249, forehead (dorsal); 250, 5th thoracic segment and urosome (dorsal); 251, A2; 252, Md (mandibular palp); 253, Md (masticatory edge); 254, Mx1; 255, Mx2; 256; Mxp; 257, P1; 258, P5.

Nota: Head and 1st thoracic segment separate, 4th and 5th fused.
- Posterior lateral corner of last thoracic segment protruded, rounded.
- Rostrum absent.
- A1 25-segmented, more or less (by last 3 segments) exceeding the caudal rami.
- This is the first record in the Indian Ocean
Plate 2 Issued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.CXI, figs.6-8].
Male: 6, habitus (dorsal); 7, Mx1; 8, P5.

Nota: P5 with exopod segment 3 more or less rounded, with a little apical spine and an minute outer distal spine.

Complementary References

Sewell, 1948 (p.505); Deevey & Brooks, 1977 (p.156, tab.2, Station "S")

Distribution

NZ: 3

Distribution map of Pontoptilus robustus by geographical zones


Localisations

Canary Is., off Bermuda: Station ‘’ S’’ (32°10’N, 64°30’W), W Indian

Quotations

N: 3

Dimensions (mm)

(67) F: 8,51; (1) M: 6,8; {F: 8,51; M: 6,80}

Remarks

Depth: ? (1): vertic. 0-3000 m; Grice & Hulsemann, 1967: 350-940 m; Overall Depth Range in Sargasso Sea: 500-1000 m (Deevey & Brooks, 1977, Station "S");
For Grice & Hulsemann (1967) this species closely resembles P. muticus. Distinguished by its larger size, long A1, and protuding 5th thoracic segment. The male was described from NE Atlantic by Sars (1905, 1925) and the female from NW Indian Ocean.
Last update : 13/01/2017

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