Cymbasoma cocoense - Species Card - Marine Planktonic Copepods

Species Card of Copepod

Monstrilloida ( Order )	details
Monstrillidae ( Family )	details
Cymbasoma ( Genus )	details	List species for this Genus

Cymbasoma cocoense Suarez-Morales & Morales-Ramirez, 2009 (F)

Abbreviations or symbols

Ref.:

(

List of the studied authors )

Suarez-Morales & Morales-Ramirez, 2009 (p.1259, figs.F); Suarez-Morales, 2011 (p.3, fig.F)

Species Cymbasoma cocoense - Plate 1 of morphological figures

issued from : E. Suarez-Morales & A. Morales-Ramirez inJ. Nat. Hist., 2009, 43 (21-22); [p.1259, Fig.1].
Female (from Isla del Coco, Costa Rica): A-B, habitus (ventral and dorsal, respectively), showing length of ovirous spines; C, urosome including 5th pedigerous, genital double, anal somites and caudal rami (dorsal).

Species Cymbasoma cocoense - Plate 2 of morphological figures

issued from : E. Suarez-Morales & A. Morales-Ramirez inJ. Nat. Hist., 2009, 43 (21-22); [p.1260, Fig.2].
Female: A, ornamentation of anterior ventral surface of cephalic area between bases of antennules and oral papillae (lateral); B, same (ventral); C, A1 showing armature (following nomenclature of Grygier & Ohtsuka, 1995), dorsal view; D, 5th pedigerous and genital double somites (lateral); E, same (ventral) showing insertion of ovigerous spines.

Species Cymbasoma cocoense - Plate 3 of morphological figures

issued from : E. Suarez-Morales & A. Morales-Ramirez inJ. Nat. Hist., 2009, 43 (21-22); [p.1261, Fig.3].
Female: A, left P1 (posterior; B, right P2 (anterior); C, right P3 (anterior); D, exopod of P4 (anterior); E, P5 (ventral viewl); F, tips of ovigerous spines.
Most setae cut short.

issued from : E. Suarez-Morales & A. Morales-Ramirez inJ. Nat. Hist., 2009, 43 (21-22); [p.1262, Table 1].
Female: armature of swimming legs.
Roman numerals = spines; Arabic numerals = setae.

NZ:

Distribution map of Cymbasoma cocoense by geographical zones

Loc:

(

Geographical glossary )

NE Pacif. (Chatham Bay, Isla del Coco, Costa Rica)

Lg.:

(

References of the authors concerning dimensions )

(1030) F: 1,45-1,67; {F: 1,45-1,67}

Rem.:

For Suarez-Morales & Morales-Ramirez (2009, p.1269) the occurrence of this species is probably endemic, because the extensive and deep oceanic area between the island and the mainland (532 km off the coast of Costa Rica) was expected to constitute an important impediment for dispersal. The dispersive capacity of the adult and larval monstriloids is limited by the presence of their benthic hosts (polychaetes or molluscs), and their relatively short residence time in the water column.
Cf Table 2 from Lian & Tan (2019) in C. cheni.

Last update : 16/07/2019


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