Larvae of the Hermit Crab, Pagurus arcuatus, From the Plankton (Crustacea, Decapoda)

Source - Journal of Northwest Atlantic Fishery Science, Volume 18: 43-56
ISSN-0250-6408

 

Squires, H.J. 1996. Larvae of the Hermit Crab, Pagurus arcuatus, From the Plankton (Crustacea, Decapoda). J. Northw. Atl. Fish. Sci. 18: 43-56. https://doi.org/10.2960/J.v18.a3

Four Zoeal Stages and the megalopa of the hermit crab, Pagurus arcuatus, Squires, 1964, are described from the plankton and compared with P. acadianus Benedict, 1901, the only other species present in a small inshore area in Bonavista Bay, Newfoundland. Pagurus arcuatus has longer exopods than endopods of antennae in Zoeal Stages I-III, few setae on scaphognathite and medial accessory spine on inner spine of uropodal exopod in Zoea Stage IV, and in the megalopa no median posterior spine on abdominal somite 6 and no postero-lateral spurs on the telson. It has a low posterolateral spine on each side of the soft part of the carapace, also 8 setae at the posterior edge of telson. All these are different from P. acadianus. 

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Language - English
Publisher - Northwest Atlantic Fisheries Organization (NAFO), Dartmouth, N.S., Canada
Publication Date - April 1996
Publication Type - Journal Article

Citation: Squires, H.J. 1996. Larvae of the Hermit Crab, Pagurus arcuatus, From the Plankton (Crustacea, Decapoda). J. Northw. Atl. Fish. Sci. 18: 43-56. https://doi.org/10.2960/J.v18.a3