20 BULLETIN 166, UNITED STATES NATIONAL MUSEUM 



RANILIA CONSTRICTA (A. Milne Edwards) 



Plate 4, Figure 5; Plate 5, Figures 1, 2 



Raninops constridus A. Milne Edwards, Bull. Miis. Comp. Zool., vol. 8, p. 35, 

 1880 (type locality, near Sombrero, 47 fathoms; whereabouts of t3'pe un- 

 known) . 



Ranilia constricta A. Milne Edwards and Bouvier, Mem. Mus. Comp. Zool., 

 vol. 47, p. 302, pi. 1, fig. 11-13; pi. 3, fig. 2-5, 1923. 



Diagnosis. — Manus without spine above. Dactyl of cheliped 

 smooth. Dactyl of tliird ambulatory crescentic. 



Description. — Carapace much constricted laterally in the form of a 

 roof, especially in the anterior half. Surface punctate and with short 

 denticulate Hues a little behind the orbital margin. The narrow 

 rostral spine extends definitely beyond the line of the adjacent teeth; 

 frontal sinuses shallow, the supra-orbital border appearing straighter 

 than in muricata; the orbit is longer than in muricata, and the lateral 

 spine is nearer the orbit. Manus unarmed above; carpus and merus 

 armed as in muricata; three or four wide subobtuse teeth on fixed 

 finger; dactyl smooth. Dactyl of third ambulatory crescent-shaped, 

 of fourth similar to that of first leg. 



Measurements. — Female (48642), length of carapace 22.8, width at 

 middle 15.7, width between tips of outer spines 15.5 mm. 



Range. — Florida Straits *; Cuba. 



Material examined. — Cuba: Bahia Honda; caught with handline 

 on reef; June 17, 1914; from Henderson and Bartsch, Tomas Barrera 

 Expedition; 1 female (48642). 



RANIUA FORNICATA (Faxon) 



Plate 5, Figures 3, 4 



Raninops fornicata P'axon, Bull. Mus. Comp. Zool., vol. 24, p. 162, 1893 (type 

 locality, station 3369, Albatross; type in M. C. Z.); Mem. Mus. Comp. Zool., 

 vol. 18, p. 41, pi. 7, figs. 1, la, lb, 1895. 



Ranilia fornicata A. Milne Edwards and Bouvier, Mem. Mus. Comp. Zool., vol. 

 47, p. 302, 1923. 



Diagnosis. — Front part of carapace conspicuously narrow and much 

 produced beyond the anterolateral angles; rostrum definitely longer 

 than adjacent spines. Merus and carpus of cheliped with a superior 

 terminal spine and propodus without. Dactyl of third leg with very 

 convex inner border. 



Description. — Carapace very convex from side to side, naked, 

 smooth or nearly so, punctate. Rostrum acute, lightly carinate, 



« Prof. Bouvier in listing the species of Ranilia (op. cit., 1923, p. 301) gives "Antilles, 47 brasses" for the 

 type locality of constricta, which is (p. 303) "au large de Sombrero." The collector of the type specimen, 

 Dr. William Stimpson, spent several seasons on the Florida reefs including Sombrero and, so far as can be 

 ascertained, made no excursions to the island of Sombrero, east of the Virgin Islands. 



