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Callianassa articulata Rathbun.
Callianassa articulata Rath bun, Bull. U.S. Fish. Comm. for 1903, p. 892, 1906.
A single specimen from a rock-pool, Sunday Island, collected by Captain Bollons in 1907.
This agrees well with Miss Rathbun's description of this species from Hawaiian Islands specimens, except that the cornea does not occupy quite so much of the eye-stalk, occupying less than one-half instead of more than one-half. The specimen also is considerably larger than Miss Rathbun's, the carapace being 12 mm. long and the abdomen 40 mm., while
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an ovigerous male of her specimens was 6·4 mm. in length of carapace, with the abdomen 16 mm. long.
I have to thank Mr. A. R. McCulloch, of the Australian Museum, for kindly comparing this species with Australian forms, and for suggesting that it belonged to C. articulata Rathbun.