OXYSTOMATOUS AND ALLIED CRABS OF AMERICA 3^ 



pair of feet (first pair of ambulatories). Feet mediocre, merus not 

 dilated; digits of first pair with apices calcareous. Four posterior 

 feet smaller, shorter, extremities subchehform, a spiniform process on 

 penultimate article. 



Atlantic coast of Middle and South America; Atlantic coast of 

 Europe, Mediterranean Sea, west and south Africa, Indian Ocean, 

 east Asia. 



DROMIA ERYTHROPUS (George Edwards) 



Figure 11; Plate 6, Figures 1, 2; Plate 8, Figures 1, 2 



Cancer marinus chelis rubris Catesby, The natural history of Carolina. Florida 



and the Bahama Islands, ed. 1, vol. 2, p. 37, pi. 37, 1743. 

 Cancer erythropus George Edwards, Catalogue of animals in Catesby's Natural 



History of Carolina, with the Linnaean names, 1771. 

 Dromia lator MiLNE Edwards, Histoire naturelle des Crustaces, vol. 2, p. 174, 



1837. 

 Dromia erythropus Rathbun, Ann. Inst. Jamaica, vol. l,p. 39, 1897. — Verrill, 



Trans. Connecticut Acad. Sci., vol. 13, p. 430, fig. 50, pi. 28, fig. 2, 1908. 

 ? Evius ruber Moreira, Bull. Soc. Ent. France, 1912, no. 15, p. 322, figs. 1, 2.* 



Diagnosis. — Carapace wider than long; anterior half subglobular; 

 posterolateral margins convergent. 



Description. — The pair of frontal teeth are larger than the median 

 tooth which forms with them an angle a little larger than a right angle. 



Figure U.— Dromia erythropus, male (2197); Outline of carapace and eyes, one-half natural size. 



A small shallow tooth above orbit, a large elongate one below. Fronto- 

 orbital distance in the old one-third or less than a third of carapace 

 width. Hairs closely placed; when they are removed from the 

 carapace, a median impressed line is visible leading back to the meso- 

 gastric region, faintly outlined; on either side is a prominent rounded 

 lobe. A deep crescentic furrow on each side of the cardiac region 

 nearly meets the curved branchial furrow. A small tubercle at 

 posterior inner angle of branchial region. Four strong conical antero- 

 lateral spines; between the second and third a low blunt tooth. Upper 

 border of merus of cheliped marginate, a few minute tubercles above; 



8 Probably the megalops of Dromia erythropus. 



