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Calanoida ( Order ) |
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Epacteriscoidea ( Superfamily ) |
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Ridgewayiidae ( Family ) |
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Placocalanus ( Genus ) |
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Placocalanus insularis Fosshagen, 1970 (F,M) | |
| | | | | | | Ref.: | | | Fosshagen, 1970 b (p.45, figs.F,M); Huys & Boxshall, 1991 (p.56, fig.F); Boxshall & Halsey, 2004 (p.179, fig.F) |  issued from : A. Fosshagen in Sarsia, 1970, 44. [p.46, Fig.8]. Female (from 21°41'15''N, 73°46'30''W): A-B, habitus (dorsal and lateral, respectively); C, A1; D, A2; E, Md. Nota: A1 23-segmented, reaching slightly beyond the dividing line between the cephalosome and the metasome when reflexed; the 1st segment is very strong and the posterior margin is extended into a broad flattened process, this process reaches halfway along the antenna and ends in a notch. Exopod of A2, though indistinctly segmented in the middle shows 8 segments; endopod 2-segmented. Urosme 4-segmented, the anal segment is short and partly covered by the preceding one. caudal rami with 6 setae on each ramus, the 2nd and 3rd from the inner margin haves joints near their bases, the outermost seta is short and spiniform.
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 issued from : A. Fosshagen in Sarsia, 1970, 44. [p.47, Fig.9]. Female: A, Mx1; B, Mx2; C, Mxp; D, P1; E, P2; F, P3; G, P4; H, P5.
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 issued from : A. Fosshagen in Sarsia, 1970, 44. [p.50, Fig.10]. Male: A, habitus (dorsal); B, right A1; C, P5 (posterior). Nota: Right A1 geniculate, 20-segmented (counting the partly fused segment beyond the geniculation as a single one; the hinge is situated between the segments 16 and 17. urosme with 5 segments, 4th urosomal segment extends dorsally to cover the short anal segment. Copepodid: D, P5 (stage V Female).
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Distribution map of Placocalanus insularis by geographical zones
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| | | | Loc: | | | Bahamas (Hogsty Reef and Conception Island) | | | | N: | 1 | | | | Lg.: | | | (512) F: 0,6-0,55; M: 0,54-0,53; {F: 0,55-0,60; M: 0,53-0,54} | | | | Rem.: | hyperbenthic. Depth: 3-4 m. | | | Last update : 21/11/2017 | |
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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 November 25, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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