i5 Addis on E. Verrlll, 



This species was not taken by the Yale parties, nor by any of 

 the later ones. Bermuda specimens may not be the true tenuipes 

 of Dana. It may have been Periclimenes, which is very similar. 

 Dr. Rankin stated that his Bermuda specimens differ somewhat 

 from Dana's description of the type, from the Sooloo Sea, but no 

 description of Bermuda examples has been given. Bermuda 

 (Heilprin*; Rankin). Its occurrence at Bermuda needs con- 

 firmation. I have reproduced Dana's figures of the type. 



Mr. Ives has more recently described another species of the 

 genus from Yucatan. (See Bibliography.) 



Family GNATHOPHYLLID^ Kingsley. 

 Drimoidce Ortmann, op. cit., p. 425, 1896. 



Body is rather stout ; carapace is carinate anteriorly. The first 

 and second pairs of legs are long, chelate, and plain ; chelae similar ; 

 the second pair are longer and larger. The rostrum is toothed, 

 short and compressed or lacking. The third maxillipeds have 

 the antepenultimate segment remarkably large and broad and 

 operculum-like ; two distal ones small and flat; last one ovate. 

 The mandibles have no palpus and no cutting lobe; ambulatory 

 legs are biunguiculate. In our species the third maxilliped is 

 5-jointed. The family contains only the following genus. 



Gnathophyllum Latreille. 



Gnathophyllum Latreille, Nouv. Diet. Hist. Nat, ed. 2, vol. xxx, p. 72, 

 1819. Cuvier, ed. 2, xxx, p. 72, 1829. M.-Edw., op. cit., 1837, p. 369. 

 M. J. Rathbun, op. cit, p. 126, 1901. 



Drimo Risso, Hist. Nat. Europe, Merid., vol. v, p. 70, 1826-29. Sharp, 

 Proc. Acad. Nat Sci. Philad., p. 124, 1893. 



Characters of the genus are the same as for the family. 



Gnathophyllum americanum Guerin. Zebra Shrimp; Banded Shrimp. 



Gnathophyllum americanum Guerin, in LaSagra's Hist. Cuba, vii, p. xx, 

 1857; Atlas, viii, pi. ii, f. 14 (front only). M. J. Rathbun, Brachyura 

 and Macrura of Porto Rico, p. 126, 1901. Verrill, Amer. Journ. 

 Science, xi, p. 328, 1901 ; these Trans., vol. xi, p. 20, 1901 (Bermuda, 

 descr.). 



* It is not enumerated by Mr. Sharp as now in the Museum of the 

 Philadelphia Academy, with the other Crustacea from Heilprin's collection. 

 (See Bibliography.) 



