318 PROCEEDINGS OF THE ACADEMY OF [1888. 



Toxopneustes variegatus, Lamk. 



We found this species very abundantly in Harrington Sound, 

 where it rarely escaped being hauled up in our dredge. It seems to 

 frequent the calcareous bottom to a depth of 10-12 fathoms, or even 

 more. Probably the species is equally abundant elsewhere. 



Mellita sexforis, Agassiz. 



As before remarked, we did not ourselves obtain any specimens of 

 this species. It is said to be abundant along the calcareous bottoms 

 of some of the inlets, as, for example, opposite Flatts Village. 



CRUSTACEA. 



For the following notes on the Crustacea I am principally indebt- 

 ed to Mr. Witmer Stone, one of my assistants on the trip, who has 

 made a careful study of all our specimens, as well as of the allied 

 and identical species contained in the collections of the Academy of 

 Natural Sciences. In the case of in any way doubtful forms I have 

 personally satisfied myself as to the determinations, and particularly 

 in cases where the geographical range appeared to indicate possible 

 or probable error. The occurrence in the Bermudas of a number of 

 what had hitherto been considered to be distinctively Pacific or Old 

 World types, as for example, Palemonella tenuipes (Sooloo Sea), Pale- 

 mon affinis (Pacific), Penceus velutinus (Pacific) — may be considered 

 positive, even though it be opjDosed to the common facts of zoogeogra- 

 phy. But this anomaly in distribution is again repeated among the 

 mollusca, as will be seen in the enumeration of species in a future 

 paper. 



The total number of species here enumerated is not very large, 

 but yet it is considerably in excess of the number published in any 

 previous paper, probably one-half of the species being now for the 

 first time credited to the Bermudas. The species of some of the re- 

 maining groups — the Isopoda, Anqihi^^oda — still await analysis and 

 determination. 



BRACHYURA. 



Microphrys bicornutus, Latr. 



Three females and one male, collected on the beach at the entrance 

 to Harrington Sound. 



Mithraculus hirsutipes, Kingsley. 



Two males and one small female, which agree in every way with 

 the description of the species given by Kingsley (Proc. Bost. Soc. 

 Nat. Hist., 20, p. 147), except in the number of teeth on the fingers, 



