FISHERY BULLETIN: VOL. 87, NO. 1 



Figure 2.— Interorbital width expressed as percent maximum span 

 across posterolateral projections for samples of six species of 

 Calappidae: vertical lines = ranges of percentage; horizontal lines 

 = means; open rectangles = standard deviations. A - Calappa 

 tortugae, B - Calappa saiissurei, juveniles in sample excluded; C 

 - C. saussurei, juveniles in sample included; D • Cydozodion 

 angustum, juveniles in type series excluded; E - same, juveniles 

 in type series included; F  C. tuberatum; G - Paracylois atlan- 

 tis; H - P. milneedwardsii. 



stn. 2263. 1 9; off St. Augustine, 29°40'N, 80°14'W, 

 64-87 m; dredge, 7 Oct. 1962.-3438. 1 ct; off Or- 

 mond Beach, 29°34'N, 80°15'W, 73-74 m; dredge, 

 24 Sept. 1961.-3171. 3 o-, 2 9 (ovig.); same, 29° 

 30'N, 80°15'W, 71-73 m; dredge, 10 May 

 1961.-3519. 3 cc, 4 9; Straits of Florida, 24°59'N, 

 80°14'W, 183 m; dredge, 9 Nov. 1961.-2362. 2 cr, 

 1 9; off Key Largo, 24°56'N, 80°22'W, 84 m; 

 dredge, 25 Oct. 1960.-2416. 1 9; Straits of Florida, 

 24°18'N, 81°29'W, 229 m; dredge, 28 Oct. 

 1960.-50. 1 9; S of Apalachicola Bay, 28°58'N, 

 85°20'W, 70-80 m; dredge, 15 July 1957. 



Caribbean: Oregon stn.— 6715. 1 O"; W Anguilla 

 I., 18°36'N, 63°27'W, 201-238 m; dredge 30 May 

 1967.-4400. 1 9; Venezuela, off Los Mongos Is., 

 12°37'N, 70°45'W, 97 m; dredge, 26 Sept. 

 1963.-5036. 1 o"; Venezuela, off Peninsula de Paria, 



11°36'N, 62°54'W, 183 m; dredge, 24 Sept. 1964. 

 MCZ 6654. 1 juv.; off Sombrero [Is.], 99 m; labeled 

 as Calappa angusta A.M.E. para type. 



Dia^wosis.- Carapace convex longitudinally and 

 from side to side; mean length 0.9 times mean width 

 {N = 66); surface elevated in median tract and bran- 

 chial regions, separated by well-marked furrow at 

 each side running from orbit to level of cardiac 

 region but thereafter becoming obsolescent; covered 

 by prominent, densely and minutely granular pro- 

 tuberances of varied size more or less symmetrical- 

 ly arranged, with more widely scattered and larger 

 granules between them; arcuate anterolateral mar- 

 gins finely granulate, with larger granules at inter- 

 vals; winglike extension with teeth largest at 

 posterolateral angle preceded by up to 4 teeth pro- 

 gressively diminishing in size anteriorly, and fol- 

 lowed posteriorly by 2 or 3 smaller teeth successively 

 diminishing in size, all with beaded edges; mean 

 maximal span between tips of posterolateral teeth 

 slightly greater (1.02) than mean maximal span be- 

 tween anterolateral margins; axis of largest tooth 

 on winglike protuberance diverging from midsagit- 

 tal line at angle of 20-25°. 



Front trilobed, downturned, slightly broader than 

 orbits; large central lobe with rather narrowly 

 rounded tip barely visible in dorsal view, smaller 

 lateral lobes directed anteriorly to accommodate 

 narrowly oblique folded antennular peduncles; or- 

 bits noticeably raised above surrounding surface; 

 interorbital width relatively narrow, its span relative 

 to maximal span between posterolateral winglike 

 extentions rather narrow (see Figures 1 and 2). 



Palms of chelipeds with external surface bearing 

 irregular ornamentation moderately reminiscent of 

 that on carapace; a lower zone of closely crowded 

 coarse granules adjacent to beaded ventral margin, 

 larger widely scattered irregular protuberances in 

 central region becoming stronger and more closely 

 arranged near base of dorsal "cockscomb" (crest of 

 teeth), widely spaced irregular granules between 

 these varying from obsolescent to well formed; short 

 obliquely curved ridge rising from proximolateral 

 corner to end anteriorly in subrectangular angle, 

 crest minutely crenulate and in line with subdistal 

 crest of 4 similar, narrowly separated broad teeth 

 on merus. 



Abdomen of each sex broadest at segment 3; lat- 

 ter fused with narrower segments 4 and 5 in male, 

 segments in female relatively broader but essentially 

 linear and free; segment 2 somewhat trilobed and 

 bearing sparsely scattered low granules clustered 

 laterally, segment 3 with much lower relief and low 



108 



