^'*^l89i!'''] PROCEEDINGS OF THE NATIONAL MUSEUM. 377 



Length of carapace in large specimen, 9 millimetres ; width, 12 milli- 

 metres. 



The specimens examined were collected in the Bermudas by Mr. G. 

 Brown Goode, 1876-'77. 



21 Panopeus affinis Streets and Kingsley. 



Panopeus transversus. W. N. Lockingtou, Proc. Cal. Acad. Sci., vii, p. 102, 1876 



(uon Stimpson). 

 Panopeus affinis. Streets and Kingsley, Bull. Essex Inst., ix, p. 106, 1877. J, S. 



Kiugsley, Proc. Boston Soc. Nat. Hist., xx, p. 151, 1879. 

 Euryiium affine. A. Milne Edwards, Miss. Sci. an Mexique, pt. 5, i, p. 334, pi. LX, 



fig. 1, 1880. E. J. Miers, Challenger Kept., Zool., xvii, p. 140, 1886. 



Carapace much flattened, front two-lobed, inner and outer angles of 

 lobes evenly rounded. Front and anterolateral margins, especially 

 the hepatic regions, granulate. External angle of orbit sharp, sep- 

 arated from the first antero-lateral tooth by a scarcely perceptible sinus, 

 second tooth lobate, third tooth broadly triangular, last tooth very 

 small and obtuse. Male abdomen comparatively broad, and tapering 

 from the middle of anchylosed segment to the tip. Sixth and seventh 

 sternal plates nearly in contact. Large cheliped with a small tooth at 

 the base of the dactyl, and also one on themanus. Ambulatory feet 

 sparsely set with long hairs. 



Length of carapace in large specimen, 12.7 millimetresj width, 18 

 millimetres. 



EECOED OF SPECIMENS EXAMINED. 



Gulf of California; U. S. Fish Commission, 1889 : San Luis Gonzales Bay, Lower 

 California (16027) ; Puerto Refugio, Angel Island (16026). 



22. Panopeus crenatus Edwards and Lucas. 



(Plate XXI, tig. 4; plate xxiv, fig. 17.) 



Panopeus crenaius. Milne Edwards and Lucas, D'Orbigny's Voy. I'Am^r. M^rid., 



p. 16, pi. VIII, fig. 1, 1843. Adam White, Crust, in Brit. Mue., p. 18, 1847. 



James D. Dana, Crust. U. S. Ex. Ex., p. 181, 1852. Spence Bate, Nat. in Brit. 



Columbia, ii, p. 270, 1866. S. I. Smith, Trans. Conn. Acad., ii, p. 5, 1869; Rept. 



Geol. Sur. Canada for l878-'79 (18'?0), p. 209 B. 

 Eurypanopeus crenatus. A. Milne Edwards, Miss. Sci. au Mexique, pt. 5, i, p. 318, 



1880. 

 ^Eurypanopeus perurianus . A. Milne Edwards, Loc. cit., pi. lx, fig. 3. 



Larger than transversuSy-with a more prominent front, and readily 

 distinguished from the latter and from all other species of Fanopetis that 

 we have examined, by the short second segment of the abdomen, in con- 

 nection with the lobate antero-lateral margin. 



The seventh .segment of the male sternum is so exposed and dilated 

 toward the sixth that the verges pass through an entirely closed channel. 

 In the anchylosed segment, the sides of the third normal segment are 

 very much rounded, those of the fourth normal are straight, and of the 

 fifth normal convex. Sides of penultimate straight and parallel. Ter- 

 minal segment much broader than long. 



