165 



light canthal line; lores dark; a black supra-tympanic mark; a dark interorbital 

 bar; gular pouch with black dots; sides darker than back; belly Hght. Total 

 length 19 mm. ; head 6. 



Variation. — Another specimen has a Ught dorsal Une, forking on to thighs; 

 indistinct light bars on legs. Still another animal is Ught gray instead of dark 

 brown. In all these the dark markings are the same. 



Paratypes: Mus. Comp. Zool., Nos. 10605-8, 10610-3. 



At Guabairo, one of the Colonias appertaining to the Central 

 Soledad, in dry hill-forest, a large and beautiful frog with brilliant 

 naarkings of scarlet and black was found. It is related to E. 

 ricordii and to E. cuneatus and there has been considerable con- 

 fusion in the past in regard to the three. E. ricordii is a small 

 form in which there is no web, the heels do not overlap, there is 

 no red in the coloration, no dorso-lateral fold, no W-shaped scapu- 

 lar fold, and in which fingers III and IV have perceptibly larger 

 disks. E. cuneatus is a larger form with toes webbed at the base, 

 heels not overlapping, no red, a dorso-lateral fold, a W-shaped 

 scapular fold, fingers III and IV with slightly larger disks. The 

 third is large, has no webs, the heels overlap, the thighs are red, 

 there is a dorso-lateral fold, no W-shaped scapular fold, fingers 

 III and IV are without larger disks. The habits, habitats and 

 calls of the three are markedly different. E. cuneatus has a 

 tendency to be aquatic. All three occur throughout Cuba, 

 although E. ricordii seems to keep to lower altitudes. The type 

 of E. cuneatus (U. S. Nat. Mus., No. 5702) has been examined. 

 Stejneger (Proc. U. S. Nat. Mus., vol. 53, p. 262, fig. 8-12, 1917) 

 employs the name cuneatus correctly, while Barbour (Mem. Mus. 

 Comp. Zool., vol. 44, p. 244, 1914, and vol. 47, p. 105, pi. 13, fig. 

 9-11, 1919) and Schmidt (Proc. Linn. Soc. New York, vol. 33, 

 p. 5, 1920) use cuneatus for the red-legged form and have con- 

 sidered true cuneatus specimens as large ricordii, to which, indeed, 

 they bear much resemblance, and with which they are ordinarily 

 found associating. 



The brilhantly colored form therefore lacks a name and it 

 seems appropriate to christen it in honor of Mr. Edwin F. Atkins, 

 who, by the establishment of the Harvard Biological Station, has 

 given a great impetus to the study of Cuban, and of tropical, 

 biology. 



Eleutherodactylus atkinsi, sp. nov. 



Type. — Adult male, Museum of Comparative Zoology, No. 10587, from 

 Colonia Guabairo, near Cienfuegos, Cuba. Collected by E. R. Dunn. 

 August 18, 1924. 



Range. — Throughout the island. 



Diagnosis. — Allied to E. ricordii and to E. cuneatus, but heels overlapping 

 when appressed; concealed surfaces of thighs red; no webs between toes; none 

 of the fingers with perceptible disks. 



