Ohtsuka S et al. (2012), A new species of Enterognathus (Copepoda, Cyclo...

ECB-ART-50126

Zookeys 2012 Jan 01;180:1-8. doi: 10.3897/zookeys.180.2509.

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A new species of Enterognathus (Copepoda, Cyclopoida, Enterognathidae) collected from the Seto Inland Sea, western Japan.

Ohtsuka S , Shimomura M , Kitazawa K .

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A new species of the endoparasitic copepod Enterognathus (Cyclopoida, Enterognathidae) is described from a crinoid host in the Seto Inland Sea, western Japan. This is a third species of the genus and its first occurrence in the Pacific Ocean. The new species is distinguished from two previously known congeners by the morphology of the body somites, caudal rami, antennae and legs. Crinoid parasites belonging to Enterognathus and the closely related genus Parenterognathus have a broad distribution from the northeastern Atlantic through the Red Sea to the West Pacific.

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References :

Ohtsuka, A new genus of endoparasitic copepods (Cyclopoida: Enterognathidae), forming a gall in the calyx of deep-sea crinoids. 2010, Pubmed, Echinobase

	Figure 1. Enterognathus inabai sp. n. holotype female: A Habitus, dorsal view B Rostrum, dorsal view C Genital opening, right, dorsal view D Caudal ramus, left, dorsal view E Antennule F Antenna G Mandible H Labrum and paragnath, ventral view I Maxillule J Other maxillule K Maxilla. Scales in mm.
	Figure 2. Enterognathus inabai sp. n. holotype female: A Leg 1, posterior view B Leg 1 excluding coxa (more or less flattened), posterior view C Leg 2, posterior view D Leg 2 excluding coxa, anterior view E Leg 3, posterior view F Leg 3 excluding coxa, anterior view G Leg 4, posterior view H Leg 4 excluding coxa and second endopodal segment, anterior view. Scales in mm.