'^'^189i!'''] PROCEEDINGS OF THE NATIONAL MUSEUM. 369 



12. Panopeus parvulus (Fubricius). 

 (Plate XXI, fig. 1 ; plate xxiii, figs. 2 aud 3.1 



Cancer parvulits. Fabricins, Entoniologia Systematica, ii, p. 451, 1793. 



XanHio jyarvuhis. Milne Edwards, Hist. Nat. des Crust., 1, p. 305, 1834. J. D. Dana, 



Crust. U. S. Ex. Ex., i, p. 170, 1852. 

 ? Panopeus polihis. S. I. Smith, Proc. Boston Soc. Nat. Hist., xii, p. 282, 18f)9 ; Trans. 



Conn. Acad., ii, pp. 3,34, pi. i, fig. 4. 18G9; Amer. Jour. Sci. (2), 48, p. 389. 1869. 

 Eurypanopens parvidus. A. Milne Edwards, Miss. Sci. au Mexique, pt. 5, I, p. 322, 



pi. Lix, fig. 5, 1880. 

 f Eunjpanopeus politus. A. Milue Edwards, Loc. cit., p. 323. 



We have twenty-six specimens from Florida, West Indies, and Brazil, 

 wbich correspond very well with A. Milne Edwards's description and 

 figure of Eurypanoiieus parruhis. Tbey are also well described by S. I. 

 Smith nnder the name of Panopeus politns. 



Seventh segment of male sternum not exposed. Anchylosed segment 

 concave throughout its length, except that the proximal end is angular. 

 Penultimate segment widest at its distal end, outline concave. Ter- 

 minal segment short and rounded. 



Length of carapace in large specimen, 12 millimetres ; width, 18 milli- 

 metres. 



RECORD OF SPECIMENS EXAMINED. 



Key West, Florida; Dr. H. Allen (Yale Univ. Mus.); H. Hemphill, 1885 (15787). 



San Domingo ; W. M. Gabb, 1878 (3202). 



Sabanilla, U. S. C. ; IT. S. Fish Commission. 1884 (15788). 



Trinidad : U. S. Fish Commission, 1884 (15658). 



Rio Vermelho, Bahia, Brazil ; R. Rathbun, Hartt Explorations, 1875-76. 



13. Panopeus planus Smith. 

 (Plate XXIV, figs. 10 and 11.) 



tanopeus planus. S. I. Smith, Proc. Boston Soc. Nat. Hist., xii, p. 283, 1869. W. N. 



Lockiugton, Proc. Cal. Acad. Sci., vii, p. 102, 1876. 

 Em-ijpanopeus jjlanus. A. Milne Edwards, Miss. Sci. an Mexique, pt. 5, i, p. 321, pi. 



Lix, fig. 4, 1880. 



Carapace slightly convex longitudinally, nearly straight transversely. 

 Areolatious well defined. Anterior margin coarsely granulate, the 

 granules thrown up in transverse lines or rugte on the carapace. Pos- 

 terior and central portions of carapace nearly smooth or glabrous to the 

 naked eye. From the median notch of the front a deep groove extends 

 back to the mesogastric region. There is also a deep groove running 

 from the orbit back to the cardiac region, inclosing the gastric regions. 

 Between the second and third antero-lateral teeth a deep groove runs 

 back between the hepatic and the branchial regions and ends abruptly 

 in a shallow pit. Between the last two teeth a groove of the same 

 character runs back, but not so far. The groove between the coalesced 

 and the second tooth ends abruptly at the base of the teeth. 

 Proc. N. M. 91 24 



