FISHERY BULLETIN: VOL. 72, NO. 3 



$, R. Spitz. 3236, Praia da Trincheira, Cananeia, 

 27 June 1964, 6 <5, Cory and Isauro. 



Santa Catarina: 665, Itaja, 1900, 3 S , Lueder- 

 waldt. 3235, Praia de Itapema, Itapema, July 

 1965, 1<J , Dep. Zool. Exped. 3244, 27°15'S, 

 48°47'W, 70-75 m, sand-shell, 21 Aug. 1966, 3 .J , 2 

 2 (1 ov), M. Iwai. Rio Grande do Sul: 3233, Praia de 

 Torres, 5 Oct. 1964, 2 <? , J. Bertoletti. 3250, Praia 

 na desembocadure, Rio Tramandai, 8 Apr. 1965, 2 

 5 juv, R. P. Leal. 



YPM. 1 lot, 2 specimens. 



BRAZIL 



824, Pernambuco, 1867, 1 5 , 1 2 , C. F. Hartt. 



Supplementary literature records.-Bermuda 

 (Verrill, 1908a); Florida (Futch, 1965; Park, 

 1969); Golfo de Venezuela and Estr. de Mara- 

 caibo, Venezuela (Taissoun, 1969); Curasao 

 (Nobili, 1897); Barbados (Jones, 1968); Barra das 

 Jangadas [S Recife], and estuaries, Pernambuco, 

 Brazil (Coelho, 1966, 1970, 1971); Ilha de Sao 

 Sebastiao and ocean beaches, Estado de Sao Paulo, 

 Brazil (Luederwaldt, 1929; Lavallard, 1960). 



CALLINECTES ARCUATUS ORDWAY 



Figures 8, ISf, 20g-h, 22f, 24 



Callinectes arcuatus Ordway, 1863, p. 578 [13] 

 (type: 3, USNM 61833, Cape San Lucas 

 [Baja Cahfornia]).- A. Milne Edwards, 1879, 

 p. 228 (var. of C. diacanthus) .- Rathbun, 

 1896, p. 362, pi. 20; pi. 23, , fig. 1; pi. 24, fig. 8; 

 pi. 25, fig. 7; pi. 26, fig. 7; pi. 27, fig. 7.- 1898, 

 p. 596.- 1910, p. 537, 577, pi. 56.- 1930, p. 

 121, text-figs. 15h, 16h, 17f, 18g, pi. 52.- 

 Young, 1900, p. 190 (var. of C. diacanthus) .- 

 Nobili, 1901, p. 31.- Boone, 1929, p. 564 

 text-fig. 3.- Contreras, 1930, p. 233, text-fig 

 5.- Garth, 1948, p. 35.- 1957, p. 36.- 1961b, p 

 141.- Garth and Stephenson, 1966, p. 43, pi 

 5, fig. A; pi. 8, fig. A; pi. 10, fig. A; pi. 12, fig 

 D.- Buitendijk, 1950, p. 275.- Bott, 1955, p 

 56. 



Callinectes pleuriticus Ordway, 1863, p. 578 [14] 

 (syntypes: 2 J, 1 2, MCZ 4701; <?, MCZ 987; 

 Panama, A. Agassiz).- A. Milne Edwards, 

 1879, p. 228 (var. of C. diacanthus).- Young, 

 1900, p. 190 (var. of C. diacanthus). 



Callinectes sp. Smith, 1871, p. 91.- Lockington, 

 1876, p. 107 [13]. 



?Neptunus diacanthus Brocchi, 1875, p. 54, pi. 16, 

 fig. 82.- Cano, 1889, p. 90, 99, 100, 102, 211.- 

 Doflein, 1899, pi. 186 (part; the Ecuador 

 specimen). 



Callinectes nitidus A. Milne Edwards, 1879, p. 

 228, explan. pi. 41 (var. of C diacanthus) 

 (syntype: 6, USNM 20269, Tanesco [ = 

 Tahuesco, 14°01'13"N, 91°07'03"W] Gua- 

 temala, on the borders of the Esteros).- 

 Young, 1900, p. 190 (var. of C. diacanthus). 



Callinectes diacanthus.- A. Milne Edwards, 1879, 

 pi. 41 [var. nitidus]. 



Callinectes dubia Kingsley, 1879, p. 156 (type: <j, 

 MCZ 5178, Gulf of Fonseca, west coast of 

 Nicaragua, J. A. McNeil).- Young, 1900, 

 p. 191. 



?Neptunus (Callinectes) diacanthus Ortmann, 

 1894, p. 77 (part; the S. Chile specimen). 



Callinectes diacanthus.- Young, 1900, p. 186 

 (part). 



Description. — Inflated carapace (Figure 8) bear- 

 ing four triangular frontal teeth, submesial pair 

 no more than half length of lateral pair. Metagas- 

 tric area of adults with anterior width about 2.5 

 times length, posterior width between 1.3 and 1.5 

 times length. Anterolateral margins arched, teeth 

 exclusive of outer orbital and lateral spine well 

 separated and varying from convex-sided with 

 subacute tips at orbital end of row to sharper and 

 more spiniform laterally, each with anterior mar- 

 gin shorter than posterior. Surface of carapace 

 with granulation fairly uniform, most crowded on 

 gastric, mesobranchial, and cardiac regions, more 

 scattered near anterolateral margins, and smooth 

 along frontoorbital, posterolateral, and posterior 

 borders. Epibranchial line prominent, interrupted 

 slightly at corner of mesogastric area. 



Chelipeds with sharply granulate ridges on 

 propodus, basal portion of dactyl, and exposed sur- 

 faces of carpus. Dactyl of major chela with large 

 basal tooth closing against molariform complex at 

 base of propodal finger, lower margin of propodal 

 finger often decurved near base in adults. 



Male abdomen and telson reaching beyond su- 

 ture between thoracic sternites IV and V; telson 

 triangular, longer than broad; sixth segment of 

 abdomen with sides nearly straight distally, di- 

 verging proximally , segment poorly calcified prox- 

 imally except for triangular basal portion con- 

 nected to distal half by a narrow (sometimes obso- 

 lescent) central indurated column. Mature female 

 abdomen and telson reaching as far forward as in 



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