A. E. Verrill — Decapod Crustacea of Bermuda. 399 



Epialtus bituberculatus (M.-Edw.) var. bermudensis Ver. 



Epialtus bituberculatus H. M.-Edw., Hist. iiat. Crust., i, p. 345, pi. xv, fig. 11, 



1834. A. M.-Edw., Miss. Sci. Mex., Crust., p. 139, pi. xxvii, figs. 1-3, 1878. 



M. J. Rathbun, Proc. U. S. Nat. Mus., xvii, p. 67, 1895 (distrib.); Brach. and 



Macr. Porto Rico, p. 60, 1901. 

 Epialtus sulcirostris and E. longirosiris Stimpson, Ann. Lye. Nat. Hist., vii, 



pp. 198, 199, 1860; A. M.-Edw., op. cit., p. 141, pi. xxvii, figs. 5, 6. 

 Epialtus dilatatus A. M.-Edw., op. cit., p. 140, pi. xxvii, fig. 4, 1878 {t. M. J. 



Rathbun). 

 Epialtus bituberculatus, var. bermudensis Verrill, these Trans., xi, p. 16, pi. 



i, fig. 1, 1907 (descr.). 



Plate XXIV, Figure 1. 



A single specimen (see figure) taken by A. H. Verrill, March, 

 1901, is the only one known from Bermuda. It was found in a small 

 cavity in a ledge, between tides. The entrance to the cavity was so 

 small that the stone had to be cut away with a chisel before the 

 crab could be extracted. That specimen is fully described in the 

 place quoted above. The species has a wide range, with several 

 local varieties or races. It extends from Indian River, Fla., to Rio 

 Janeiro, Brazil. Egmont Key, West Florida (Yale Mus.). The 

 West Coast form ranges from Southern California to Chili (var. 

 minimus Lockington). 



Family Periceridae ( = Maiidee,* some authors). Spider Crabs. 



Basal joint of the antennte well developed, inserted beneath the 

 eyes, and usually forming a large part of the inferior boundary of 

 the orbits. Chelipeds not of unusual size, often not much larger 

 than the other legs. Orbits complete; eyes retractile. 



This family, as here understood, includes several groups that have 

 been regarded as subfamilies, or even families : Pericerince, Mithra- 

 cince, Orthonince, Paramayince, etc. 



Probably many more species of this family than are here recorded 

 inhabit the rough bottoms at moderate depths around the outer 

 reefs. 



* The generic name Maia, as shown by Miss Rathbun, cannot be used for a 

 genus of this group. Therefore this family name should also be changed. 



More recently (1905) Miss Rathbun has stated that Paramaya de Haan, 1837, 

 is identical and should have priority. 



Mamaiidce Stebbing (S.African Crust., Part iii, p. 22, 1905) has been pro- 

 posed for the group here regarded as a subfamily, Paramayince. 



