Carcinonemertes regicides n.sp. (Nemertea), a symbiotic egg predator from the red king crab, Paralithodes camtschatica (Decapoda: Anomura), in Alaska
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چکیده
SHIELDS, J. D., WICKHAM, D. E., and KURIS, A. M. 1989 . Carcinonemertes regicides n.sp. (Nemertea), a symbiotic egg predator from the red king crab, Paralithodes camtschatica (Decapoda : Anomura), in Alaska. Can . J . Zool . 67 : 923-930 . A symbiotic nemertean worm, Carcinonemertes regicides n.sp ., found on red king crabs, Paralithodes camtschatica, is described and compared with other members of the genus Carcinonemertes . The family Carcinonemertidae Humes, 1942 is emended to include this species and to include known but as yet undescribed members . The following familial characters are considered diagnostic : (i) symbiotic relationship with a decapod crustacean, (ii) short proboscis, (iii) absence of cerebral organs, (iv) presence of Takakura's duct, and (v) a hoplonemertean larva . The new species of Carcinonemertes has a relatively large basis and stylet, a large anterior proboscis chamber, and a newly described flame cell pattern of 2[(1 + 1 + 1 + 1)] . In addition, at maturity it is the smallest member of the genus (typical adult size is 2 .0 mm in length), and female worms bear ovarian pores before oviposition . The above characters distinguish this species from others in the genus .
منابع مشابه
Carcinonemertes regicides n.sp. (Nemertea), a symbiotic egg predator from the red king crab, Paralithodes camtschatica (Decapoda: Anomura), in Alaska
SHIELDS, J. D., WICKHAM, D. E., and KURIS, A. M. 1989. Carcinonemertes regicides n.sp. (Nemertea), a symbiotic egg predator from the red king crab, Paralithodes camtschatica (Decapoda: Anomura), in Alaska. Can. J. Zool. 67: 923 930. A symbiotic nemertean worm, Carcinonemertes regicides n.sp., found on red king crabs, Paralithodes camtschatica, is described and compared with other members of the...
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