324 A. E. VerriU Decapod Cruxhirea of 



totns of vessels far from its usual habitats. In this \\.-iv it- ran<re 



O 



may have been greatly extended by commerce in modern times. 

 Adult living specimens were taken at Provineetown. Mass., in 1879. 

 They occurred among barnacles, etc., on the bottom <>f a whaling 

 vessel returned from a cruise in the (lull' Stream region and were 

 associated with other southern species. (See S. I. Smith, ISM.) 



It ranges from Florida and Bermuda to southern IJra/il ; from 

 Peru to the Gulf of California ; West Al'rie.-i ;it Luanda, etc. Cape 

 Verde Islands an,] .Madeira ; V.-^\ Indies ; Australia : New Zealand ; 

 Tahiti ; Galapagos Is.; Pernambue.., etc. ; I'.ra/.il, on stone reefs, and 

 Maceio on coral reefs ( M. J. Kathbmi): Kio (Heller); Australia 

 (Miers). 



Pachygrapsus gracilis (San<Mir--i Stimp. 



Mi'tojH',,,-,!/,*!!* i/mri/is S:.ussur... M-lll. SOC. I'li\-. Ili-t. N;,t. Geneva, Xiv. ]). 



II:;. pi. II. f. |.-,. l.- )rt) 1.S58. 



Pachygrapsus gracilis Stimpaon, Ann. Lye. Nat. Ili-t. X. York. x. p. 118. isn. 

 Kingsley, Proc. Bost.m Soo. \.-it. Hist., El p. l.V.i. i^;n (descr.). Synop. 



Grapsidae, Proc. A.cad. \.-it. s<-i., Philad. I'm- issn. p. .Mm >N1I . .,,,,] descr.) 

 V- ' U.-itlil.iiii. I'.rain, n- 4gaasiz Exp., p. i:;r. I'.mu : Mi-a.-l,. an.! Macr. of 



Porto Eic.). ]>. 17. I'.inl. 



FIGI-IIKS (i. (>,,. PLATK XII. l-'n;i KK 0. 



This is usually smaller than the preceding, and is much less com- 

 mon. Ets colors are similar, but the reticulations and mottling arc- 

 darker brown. It can best be distinguished by the more prominent, 

 thin, and nearly straight, front : the straighter sides of the carapace, 



Figure 8. Pachygrapsus gracilis, carapace enlarged; 60, one of tlif ehel*. 

 After Saussure. 



which is not plicated over the cardiac region ; and by the chehe, 

 which have small denticles on the upper side of the carinate maims, 

 and on the dactylus. The manus has fine oblique ridges above, and 

 the carpus is covered with fine oblique and irregular ridges. 



It appears to be rare at Bermuda, or at least is seldom taken there. 

 A few good specimens were found at Bermuda by us in 1898 and 

 April, 1901 ; one of the latter carried eggs. A specimen was also 

 obtained by Mr. Goode, 1876. It has been found at the Florida 



