FISHERY BULLETIN: VOL. 87, NO. 1 



area, and 6-10 more obscure tubercles dorsally near 

 "cockscomb"; a low flattened smooth ridge prox- 

 imolaterally in line with tubercles subparallel to 

 lower margin and with subdistal crest of broad flat- 

 tened teeth on merus, anterior tooth of latter with 

 subrectangular tip, second biconcave acute, third 

 and fourth obsolescent and slightly crenulate. Pereo- 

 pods 2-5 spineless. 



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 of male somewhat tri- 

 lobed, that of female less strongly so, each with scat- 

 tering of obsolescent granules on these members; 

 telson subtriangular. Male pleopod 1 stout, slightly 

 curved and conically elongate, tapering to narrow 

 distal opening with nearby cluster of minute horny 

 spinules; pleopod 2 with slender stylet divided into 

 2 parts, gently curved proximal part stronger than 

 distal part diverging obliquely mesad, tip only slight- 

 ly exceeding that of pleopod 1 . 



Measurements in mm.— Carapace: holotype o" 

 length 7.3, maximum anterior width 7.9, maximum 

 span across winglike posterolateral projections 6.5; 

 nontypes, same, smallest o" 17.3, 19.0, 15.1; largest 

 o- 21.5, 22.9, 18.2; smallest 9 19.8, 18.5, 16.1; 

 ovigerous 9 26.4, 24.5, 20.8. 



CoZor.— Preserved specimens display a sprinkling 

 of tiny pale orange spots on posterior 2/3 of carapace 

 and upper exposed parts of chelipeds. 



Known rawpe.— Florida off Cape Canaveral to 

 Colombia, off Isla Providencia, and Guayana, 95-421 

 m. 



Remarks.— Cyclozodion angustum was originally 

 based on juvenile specimens of quite small size and 

 placed in the genus Calappa. Subsequent authors 

 have followed this lead, attributing the narrowed 

 span across the posterolateral winglike projections 

 in all stages from juvenile to adult to youthful allo- 

 metric phases seen in Calappa. Broadening of the 

 winglike span in C. tortugae actually becomes estab- 

 lished at very early stages, as pointed out above in 

 the discussion of that species. 



The eyes are relatively larger than in C. tortugae, 

 the orbits less protuberant, and in frontal view the 

 orbits are less elevated above the plane of the beaded 

 anterolateral margin than in that species. Inter- 

 orbital width expressed as a percent of maximum 

 span across the posterolateral winglike projections 

 is significantly higher in Cyclozodion angustum than 



in Calappa tortugae, another indication of the differ- 

 ential in size of orbits and carapace shape in these 

 two species (Fig. 2A, D), although there is minimal 

 overlap in this ratio for a few specimens. Two ver- 

 sions of this ratio are given for Cyclozodion angus- 

 tum: one for the bulk of material measured and ana- 

 lyzed (Fig. 2D, N=27,x = 0.581, SD = 0.040) 

 and one that includes the very small individuals in 

 the type series (Fig. 2E, N = 30, x = 0.595, SD 

 = 0.060). Except for the range of percentages, in- 

 dicating the relatively larger eyes of the types, there 

 is no difference between the two sets of data. 



Other features that distinguish C. angustum and 

 Calappa tortugae are found on the chelipeds. The 

 exposed carpal surface is smooth in the former, 

 rough in the latter, and the proximoventral corner 

 of the extensor surface on the palm bears a low 

 rounded crest in the former but an anteriorly sub- 

 rectangular crest in the latter. 



Cyclozodion tuberatum new species 



Figures 2, 4 



Calappa angusta A. Milne Edwards 1880:18 (part, 

 selected juveniles).— A. Milne Edwards and Bou- 

 vier 1902: 123 (part, selected juveniles). 



Material siwrfied.— Specimen lots in USNM re- 

 corded by Rathbun (1937) under Calappa angusta 

 (catalog numbers only) plus material added since 

 that time. 



Bahamas: USNM 234462. Holotype o-; N Little 

 Bahama Bank, 27°55'N, 79°05'W, 183 m; Silver 

 Bay stn. 3466, dredge, 25 Oct. 1961. -USNM 

 234463. Allotype 9; same.-USNM 234464. Para- 

 type 0-; same, 27°26'N, 78°57'W, 137 m; stn. 3468, 

 dredge, 25 Oct. 1961.-USNM 234465. Paratype ct; 

 Straits of Florida off Great Bahama Bank, 26°06'N, 

 79°10'W, 223-229 m; stn. 2480, dredge, 9 Nov. 

 1960. 



North Carolina: USNM 51070.-101676. 1 9; off 

 Cape Lookout, 137 m.— Silver Bay stn. 3333. 1 o-; 

 off Cape Fear, 33°48'N, 76°34'W, 73 m; trawl, 14 

 Aug. 1961. 



Florida: USNM 20028, 68505, 68515, 71370, 

 71371.-169921. 2 unsexed; off Sebastian Inlet, 80 

 m.-101415. 1 CT, 1 9 (juv.); Florida Straits, 119 

 m.-77291. 2 cr; off Key West.-101420. 1 9; same, 

 73-91 m.-101677. 1 ct; Gulf off W Fla., 31-35 

 m.— 91140. 2 CT, 1 juv.; same 113 m. 



Oregon stn. 6040. 1 9; off St. Augustine, 29°47'N, 

 80°33.5'W, 35 m; dredge, 24 Apr. 1966.-Silver Bay 

 stn. 3704. 1 9; off Cape Canaveral, 28°30'N, 



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