Itoitantulus misophricola gen. et sp. nov.: First record of Tantulocarida (Crustacea: Maxillopoda) in the North Pacific Region
Huys, R.; Ohtsuka, S.; Boxshall, G.A.; Ito, T. (1992). Itoitantulus misophricola gen. et sp. nov.: First record of Tantulocarida (Crustacea: Maxillopoda) in the North Pacific Region. Zool. Sci. 9: 875-886
In: Zoological Science. Zoological Society of Japan: Tokyo. ISSN 0289-0003; e-ISSN 2212-3830
A new tantulocaridan, Itoitantulus misophricola Huys, Ohtsuka et Boxshall gen. et sp. nov., (Crustacea) ectoparasitic on a hyperbenthic misophrioid copepod, Misophriopsis okinawensis Ohtsuka, Huys, Boxshall et Itô, 1992, is described from Kume Island, Okinawa, South Japan. This is the first record of Tantulocarida from the North Pacific region. The new tantulocaridan is placed in the Deoterthridae on account of the 1-segmented abdomen, the absence of a rostrum in the tantulus larva, the segmentation of the rami of the thoracopods, and the position of the expanded trunk sac in the male. The new genus can be distinguished from other deoterthrid genera by the absence of a lobate endite of thoracopod 1 and the presence of the dorsally directed, recurved spine on the apex of the sixth thoracopod in the tantulus larva.
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