.1. E. Vi'i-rill Decapod Crustacea of Bermuda. 331 



seasons, so that they may no longer interbreed. It is also probable 

 that the young crabs of var. terrestrtu, when they quit the megalops 

 stage at the shore, have inherited the instinct to seek the uplands. 

 A careful study of these species in summer might settle these points. 



Sesarma Miersii Rathbun. 



Sesarma (ff>.>1<inictoj>i<n) Mirrsii M. J. Rathbun, Synopsis American Sesarmse, 

 Proc. Biolog. Soc. Wash., xi, p. 91, 189? (descr. and synon.); Branner- 

 Agassiz Exp. to Brazil, p. 138, 1900. Verrill, these Trans., vol. x, p. 574, 

 1900. 



Sesnnna Sli-nif>soni Miers, Rep. Voy. Challenger, Zool., xvii, p. 270, 1886 (not 

 of 1881). 



PLATE XII, FIGURE 5. 



This species can be distinguished from the preceding by the tuber- 

 eulated or distinctly granulated protogastric region of the carapace, 

 which in the latter is nearly smooth. 



Ordinary mature specimens have the carapace about 19 mm long 

 and 21 mm wide. 



Miss Rathbun refers a young specimen, collected by us in 1898, to 

 this species. It appears to be very rare in Bermuda. 



It ranges from Bermudas and the Bahamas to Rio Janeiro, Brazil. 

 Rio Parahyba do Norte (Rathbun). It lives mostly among the roots 

 of mangroves. 



Cyclograpsus integer Edw. 



integer Milne-Ed w., Hist. Nat. des Crast., ii. p. 79, 1837. 

 Kingsley, Proc. Acad. Nat. Sci., Philad., Carcinol. Notes, iv, p. 221, 1880. 

 Rankiii, Crust. Bermuda, p. 526, 1900. M. J. Rathbun, Brach. and Macr. of 

 Porto Rico, p. 18, 1901. 



PLATE XII, FIGURE 1. 



This species is easily recognized by its smooth carapace, with 

 convex sides. It is very rare in Bermuda. 



It was not found by us, nor has it been taken by any recent 

 collector. A single specimen in the collection of Mr. Goode was 

 identified as this species by Prof. S. I. Smith. The same one was 

 recorded by Rankin. The only other record, is that of Heilprin, 

 also a single specimen. It sometimes occurs on coral reefs. 



It ranges from Florida to Brazil, and throughout the West Indies. 

 Florida (Kingsley) ; Porto Rico (Rathbun) ; Brazil (M.-Edw.). 



TRANS. CONN. ACAD., VOL. XIII. 24 JAN., 1908. 



