WILLIAMS: CRABS OF THE GENUS CALUNECTES 



marginatus); coast of America, the same species; 

 Chile, species undetermined by either Brocchi or 

 Milne Edwards because of fragmentary informa- 

 tion. Brocchi's illustration of a strongly curved 

 gonopod (plate 16, Figure 76) seems closest to 

 C. marginatus. Figure 78 depicting a short and 

 straight gonopod seems closest to C. ornatus as 

 does the undesignated Figure 79. Figure 77, 

 though clearly called "short," resembles that of 

 C bellicosus in sinuosity. Milne Edwards (1879), 

 making no mention of "long" or "short" gonopods 

 for this species, was impressed with the double 

 curvature, but listed C. bellicosus only from Cabo 

 de San Lucas, Baja California. We must regard 

 Figure 77 as possibly an illustration of C. mar- 

 ginatus because it seems closest to that species 

 from geographic origins listed. 



Following is an outline summary of first 

 gonopod characters as understood by Milne Ed- 

 wards (1879). 



ATLANTIC 



hastatus [= sapidus]: long, reaching to near end of 



abdomen; Nantucket to Mobile, perhaps on 



coast of Brazil, 

 ornatus." short and straight; Charleston-Cumana, 



including Tortugas, Bahamas, also Santa 



Catarina, Brazil. 

 larvatus [= marginatus]: very short and curved; 



coast of Florida, Key West, Tortugas, 



Bahamas, Haiti, Veracruz, Mexico. 

 tumidus [= exasperatus]: long but moderate and 



distinctly hooked, approaches Aasta^j/s; Key 



West, Fla., Haiti. 

 bocourti: long, to end of abdomen as in hastatus; 



Honduras. 

 cayennensis [= bocourti]: long and reach end of 



abdomen as in hastatus; Guyana. 

 danae: long and straight; Rio de Janeiro 



(diacanthus) . 



PACIFIC 



toxotes: very long, end of abdomen; Cabo de San 

 Lucas. 



robustus [= toxotes]: very long as above; Colombia. 



bellicosus: "the verges reach almost the middle of 

 the penultimate article, they are incurved 

 strongly and outward near the extremity, 

 then inward similarly and finally the point 

 is directed externally" [sinuous]. Golfo de 

 California; Cabo de San Lucas. 



arcuatus: long and straight, reserahXes diacanthus 



of Rio de Janeiro; but more slender; Cabo de 



San Lucas. 

 pleuriticus [= arcuatus]: long and straight; 



Panama. 

 nitidus [= arcuatus]: slender, straight and long; 



Guatemala, Tanesco. 



In addition, those from Chile resemble the 

 Guatemalan forms. 



Material. — Total: 199 lots, 655 specimens. 



Specimens listed in Rathbun (1930) from 

 USNM [correction, USNM 62050 = 62051] and 

 MCZ; Garth and Stephenson (1966) from AHF 

 and USNM. 



USNM. 76 lots, 316 specimens, including the 

 following not cited above: 



MEXICO 



Baja California: 64119, Isla San Lucas, 15 Jan. 

 1930, 1 d juv, M. Valerio. Sonora: 111769, Golfo de 

 Calif.? no date, 1 6, T. H. Bullock, Stn. W53-289. 



Nayarit: 123089, Estero de San Bias, 7.5 mi by 

 road NNE San Bias, 14 Feb. 1955, juv 6 S, 2 9, 

 Miller and Greenbank, M55-18. 123090, slough at 

 N end Laguna de Mexaltitan, 28 Mar. 1955, 1 S 

 juv. Miller and Greenbank, M55-74. 



GUATEMALA 



20269, Tanesco [= Tahuesco, 14°01'13"N, 

 91°07'33"W] on the borders of the Esteros, 1 <? 

 (dry). 123088, Iztapa, 5 Apr. 1950, 1 S. 



NICARAGUA 

 77085, El Realejo, no date, 1 S juv, Kingsley. 



COSTA RICA 



61034, Puntarenas, Mar. 1927, 1 S (dry), M. 

 Valerio. 76137, San Lucas [— Isla San Lucas], 15 

 Feb. 1931, 2 juv, M. Valerio. 76685, Golfo Dulce, 2 

 Feb. 1933, 1 9 (dry), M. Valerio. 



PANAMA 



77090, Balboa, C.Z., 4 Feb. 1937, 1 <? juv, 1 9, S . 

 F. Hildebrand. 77094, Drydock, Balboa, C.Z., 8 

 Feb. 1937, 1 $, S. F. Hildebrand. 76917, Miraflores 

 Locks, C. Z., no date, 2 juv, S. F. Hildebrand. 

 77081, Farfan Beach, C. Z., 23 Feb. 1937, 1 6 juv, 

 S. F. Hildebrand. 77082, Venado Beach, 26 Feb. 

 1937, 1 S juv, S. F. Hildebrand. 77083, Puerto 

 Pilon, 2 Mar. 1937, 1 9 juv, S. F. Hildebrand. 

 77093, Taboga I., 8 Feb. 1937, 1 juv, H. C. Clark. 

 82134, Miraflores Locks (Lower Chamber), 4 juv, 



755 



