3(i6 A. E. Verrill — Decapod Crustacea of Bermuda. 



Analytical Tabla of the Bermuda species of Callinectes. 



A. — Frontal teeth four, not counting inner orbitals. 



B. — Intramedial gastric area broad and short: ratio of length to breadth about 



1:3; male appendages not very short ; tips crossed. ontatus 



B'. — Intramedial area longer and less broad ; length to breadth about 1:2. 

 C— Male appendages very short, scarcely exceeding 3d abdominal segment. 



marginatus 

 C. — Male appendages much exceeding 3d abdominal segment ; tips straight, 



not crossed .-. - Dance 



A'. — Frontal teeth two, not counting the inner orbitals ; male appendages very 



long, about reaching end of abdomen, tips divergent sapidus 



Figure 22. — Male generative appendages (verges) of Callinectes : a, of E. sapi- 

 dus ; b, of C. margin atus ; c, of C o)'natus ; d, of C Dance; e, of C. 

 tumidus. All these are West Indian species. After M. J. Rathbun. 



Callinectes ornatus Ordway. Edible Crab. 



Callinectus ornatus Ordway, Boston Jour n. Nat. Hist., vol. vii, p. 571, 1863. 

 Smith, Crust. Brazil, these Trans., ii, p. 8, 1869 (descr.). A. M.-Edw., Miss. 

 Sci. Mex., V, p. 225, 1879 (as var. of cliacanthus). Smith, Annual Rep. U. S. 

 Fish Comm., for 1885, p. 29, 1886. Rankin, Annals N. York Acad. Sci., 

 xii, p. 529. Rathbun, The Genus Callinectes, Proc. U. S. Nat. Mus., xviii, 

 p. 356, -pi. XV (general) ; pi. xxiv, fig. 3, pi. xxv, fig. 2, pi. xxvi, fig. 2. pi. 

 xxvii, fig. 2 (details), 1896 ; vol. xxi, p. 596 ; Brach. and Macr. Porto Rico, 

 p. 48, 1901 (descr.) ; Amer. Naturalist, xxxiv, p. 140. 



Figures 22c, 23b. Plate XVII, Figure 1. Plate XXI, Figure 2. 



This species can easily be di.stinguished from most of the others 



of this genus by the four prominent, frontal teeth ; those of the 



antero-lateral margins are rather long, nearly straight and acute. 



The ambulatory legs are long and slender. The carapace is convex. 



