THE BEACH YURA AND MACRURA OF PORTO RICO. 
85 
Calappa sulcata Rathbun. 
Calappa sulcata Bathbun, Bull. Lab. Nat. Hist. State Univ. Iowa, iv, 289, pi. ix, figs. 3 and 4, 1898. 
Extreme length of carapace about seven-eighths its extreme width. Upper surface of carapace 
and outer surface of cheliped finely granulate. About seven rows of tubercles on carapace. Antero- 
lateral border with about fourteen crenulations, granulate on edge. Posterior margin between wings 
with two prominent acute spines. Wings not strongly developed, having six marginal teeth — two 
behind and three in front of postero-lateral tooth, which is long and spiniform. Pterygostomian 
regions slightly hairy. Front little projecting and with a well-defined notch. Endostomial septum 
with a short, sharp tooth projecting forward less than one- third distance from mouth to front. Arm 
expansion four-lobed. Superior crest of hand six to seven-dentate. Outer surface of palm with an irreg- 
ular, oblique sulcus almost smooth, bordered by tubercles, and an acuminate inferior proximal spine. 
Dimensions of female: Extreme length, 21 mm.; width at sinus just in front of wings, 23 mm.; 
width at posterior lateral spines, 23.8 mm. 
Gulf of Mexico, 35 fathoms; off Cape Hatteras, 27 fathoms. Mayaguez Harbor, Porto Rico, 12 
to 18 fathoms, station 6061, 1 female, larger than specimens previously collected. 
Color in alcohol, a light pinkish brown. There are seven small and narrow rings of dark red; 
three on the carapace — one median encircling the third median tubercle, counting from the front; one 
on each branchial region, about the middle of the length of the carapace and encircling the fourth 
tubercle of the outermost continuous row of tubercles. There is one ring on each wrist and one on 
each palm near the upper margin and inclosing the tubercle toward the proximal end of the margin; 
this tubercle is not in the center of the ring, but near its upper periphery. 
Calappa gallus (Herbst). 
Cancer gallus Herbst, Natur. Krabben u. Krebse, m, pt. 3, pp. 18 and 46, pi. lvui, f. 1, 1803. 
Cancer ( Calappa 1 gallus Latreille, R5gne Anim., ill, 24, 1817. 
Calappa galloides Stimpson, Ann. Lyc. Nat. Hist. N. Y., vn, 71, 1859. 
Extreme length of carapace nearly five-sixths extreme brea n. Carapace, outer surface of wing- 
like expansion of the arm, upper surface of wrist, and outer surface of palm are covered with coarse 
tubercles, which become squamiform on posterior part of carapace. A deep hollow between gastric 
and hepatic regions. Antero-lateral border of carapace crenulate; posterior border finely beaded and 
quite unarmed. The clypeiform expansions are well developed and have each about six strong teeth 
with beaded edges — two teeth behind and three in front of postero-lateral tooth. The pterygostomian 
regions have only a few scanty hairs. Front emarginate, projecting well beyond orbits and forming a 
laminar rostrum. Endostomial septum extends vertically from level of front to level of mouth; its 
anterior border angularly convex. The wing-like expansion of end of arm is conspicuously four-lobed; 
crest of palm six or seven-dentate. 
Dimensions of female: Length, 50.5 mm. ; width at sinus just in front of wings, 54.5 mm. ; greatest 
width of carapace, 67 mm. 
Islands of the Pacific and Indian Oceans; Red Sea and Persian Gulf; West Africa; Florida Keys 
to Bahia, Brazil. Porto Rico: Playa de Ponce, on Light-house Reef; off Huma^ao, 12£ fathoms, station 
6098; San Juan (G. M. Gray, coll.). 
Genus CYCLOES de Haan. 
Cycloes de Haan, Fauna Japon., 67, 68, 1837. 
Cryptosoma Milne Edwards, Hist. Nat. Crust., ii, 110, 1837; Brulld, Hist. Nat. lies Canaries, xr, pt. 2, Crust., p. 16, 1840. 
Cai’apace heart-shaped or subcircular. Front rather narrow and often emarginate. Orbits large, 
oval, a distinct suture or a fissure in roof and two gaps in the floor, in one of which the slender basal- 
antennary joint is lodged. Eyes large, eye-stalks short and thick. Antennules folding obliquely. The 
external maxillipeds completely close buccal cavity; above them the endostomial efferent branchial 
channel is closed by lamellar processes from first pair of maxillipeds. The antero-internal angle of 
merus of external maxillipeds prolonged obliquely forward to form a prominent lobule above articulation 
of palp. Chelipeds similar to those of Calappa. Ambulatory legs compressed and of moderate size. 
Third, fourth, and fifth segments of abdomen in male fused together; in female all are perfectly distinct. 
Cycloes bairdii Stimpson. 
Cyclois bairdii Stimpson, Ann. Lyc. Nat. Hist. N. Y., vn, 237, 1860. 
Carapace broader than long, regularly convex; median regions well defined. Surface densely and 
coarsely granulate, uneven, or tuberculate. F ront with U -shaped notch. Antero-laterai margin with a 
