170 SMITHSONIAN MISCELLANEOUS COLLECTIONS 



This pretty little species was dredged on a shelly bottom in eight 

 fathoms, in the Bay of Hakodadi.^ 



ANOMURA 



TELEOSOMI 

 Genus DRO^IIDIA Stimpson 



The group which we have separated from Dromia, under the 

 generic title of Dromidia, is very closely allied to the old genus 

 restricted, in form and general appearance. The following charac- 

 ters mav be mentioned as distinguishing it, some of which, however, 

 mav not prove to be of generic value when additional species shall 

 be discovered. The carapax is convex and pilose, the hair or setse 

 being often of considerable length. The front is narrow, and the 

 hepatic regions more or less concave or excavated anteriorly. The 

 palate is marked by a strong ridge on either side. The posterior 

 feet are similar to those of Dromia, but the last pair is generally 

 longer than the penult pair. The appendages to the penult joint of 

 the abdomen are minute and concealed. In the sternum of the 

 female the copulatory sulci are produced, and approximated at their 

 extremities in a more or less tuberculiform projection situated be- 

 tween the bases of the chelipeds. 



In the typical species, D. hirsutissima, the palpus of the outer 

 maxillipeds is articulated to the meros rather at its apex than at its 

 inner angle, as noticed by De Haan. This, however, results from 

 the elongation of the meros- joint and the obliquity of its anterior 

 margin. It does not seem to be a character of much importance, 

 and is not seen in other species of the genus. 



As in former descriptions of Dromicc no mention is made of char- 

 acters which are here considered generic, it will be impossible to 

 arrange all of the known species into groups without a re-examina- 

 tion of the specimens; but we conjecture that D. globosa, gibbosa,. 

 nnidcntata. and rotunda will be found to belong in the present genus. 



' HAPALOCARCINID.^ 

 Hapalocarcinus marsupialis Stimpson 

 Plate XIV, Fig. 8 

 Proc. Boston Soc. Nat. Hist., vi, p. 412, 1859. Rathbun, Bull. U. S. Fish, 

 Comm. for 1903, part in, p. 892. 1906. 



Not mentioned in the manuscript of this report. 

 Hilo, Hawaii, i fathom (Stimpson). 



