Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Euchaetidae ( Family )
            Paraeuchaeta ( Genus )
Paraeuchaeta altibulla  Park, 1995   (F)
Syn.: Euchaeta altibulla : Park,1994 (p.322)
Park, 1995 (p.53, Descr.F, figs.F)
Species Paraeuchaeta altibulla - Plate 1 of morphological figuresissued from : T. Park in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 1995, 29. [p.156, Fig.46].
Female: a, forehead (left side); b, urosome (left); c, d, e, genital somite (left, right, ventral, respectively); f, outer lobe of Mx1; g, P1 (anterior); h, P2 (anterior).

Nota: Similar in habitus to P; abyssalis and P. calva but can be distinguished.
Rostrum beginning some distance from suprafrontal sensilla, pointing nearly parallel to anterodorsal margin of forehead.
Urosome elongate.
Dorsal wall of genital somite smoothly and broadly ciurved. Genital flange relatively low, with small but distinct posterior lobe pointing posteroventrad. Posterior edge of genital field produced into low ridge some distance from genital flange. Posterior margin of genital prominence slightly bulging and nearly perpendicular to, and merging in a curve into, posterior ventral wall of somite, which is nearly twice length of posterior margin of prominence excluding posterior edge of genital field.A low tubercular outgrowth close to ventral wall anterior to genital ^prominence on left side of genital somite. Ventrally, genital somite widest anterior to middle, posterior lobe of genital flange pointing mediad (Fig.46-e).
Cephalosomal appendages similar to those of P. abyssalis except that 1st endopodal segment of Mx1 with 7 setae (as in P. malayensis); outer lobe with 6 long setae followed by a small proximal seta (as in P. abyssalis).
Swimming legs similar to those of P. abyssalis except that outer spine of 1st exopodal segment of P1 better developed and in P2 exopod, 4th outer spine only slightly longer than 2nd and incision setarating its marginal lobe short of reaching level of preceding incision.

Species Paraeuchaeta altibulla - Plate 2 of morphological figuresParaeuchaeta altibulla Female:
1 - See key to species Groups and independent species of Paraeuchaeta (p.30): malayensis species Group.
2 - Outer spine of 2nd exopodal segment (or the 2nd of the first 2 exopodal segments forming a proximal, compound segment) of P1 normally developed (Fig.46-g).
3 - Outer lobe of Mx1 with 6 long setae in addition to 1 small seta proximally (Fig.46-f).
4 - Genital somite with a conical process on left side close to anterior base of genital prominence (Fig.46-c).
5 - Conical process of genital somite small; posterior lobe of genital flange projecting posteroventrad into conical process (Fig.46-c).

NZ: 2

Distribution map of Paraeuchaeta altibulla by geographical zones
SW Ireland, Japan (Pacific coast)

Type locality: 33°04'N, 141°55'E.
N: 1
(3) F: 8,9-8; {F: 8,00-8,90}
Rem.: For Park (1995, p.53) found this form in the northeastern Atlantic at 47°20'N, 19°44'W, and also in the collection of H. Weikert in samples from 3665 m and 4260-4000 m, always in the northeastern Atlantic.
Last update : 27/01/2015
    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., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed May 25, 2024]

© copyright 2005-2024 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