228 ■ BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 



26. Coecilia gracilis Shaw. 



DistribuHon. — Northern South America. 



A single specimen apparently of this form is before me, from Panama. This 

 locality is rather distant from the hitherto known range of the species. There 

 are 199 circular rings, all of which are interrupted dorsally except the hinder- 

 most. The great majority of the rings are characteristically interrupted ven- 

 trally also. A few, however, are complete below. 



27- Coecilia sabogae, sp. nov. 



Types. — Two specimens, Xo. 2425 Mus. Comp. Zobl., from Saboga Island. 



Head narrowing anteriorly, snout decurved, projecting acutely beyond mouth ; 

 eyes visible or almost invisible ; tentacle on the under surface of snout, directly 

 below the nostril. 175-180 circular folds, equidistant, complete above and 

 below. Slate gray, plicae darker, head much lighter. Total length 272 and 

 381 mm., diameter 7 and 8 mm. (The specimens have evidently shrunken.) 



ENGYSTOMATIDAE. 

 28. Phryniscus laevis Gvxther. 



Distrihution. — Western South America. 

 A single male from Panama. 



CYSTIGNATHIDAE. 

 29. Leptodactylus insularum, sp. nov. 



Types. — Twelve specimens. No. 2424, Mus. Comp. Zoul., from Saboga 

 Island. 



Dr. Stejneger, who has very kindly examined specimens of this species, 

 writes me as follows : " They seem to belong to the L. caliginosus group, 

 some of which seem to have dorso-lateral folds. I cannot make up my mind 

 to identify them with any of the describe^l species. The angularity of the 

 teeth seems to be extreme, and recalls L. fragilis Bocourt and L. raniformis 

 Werner, the latter from Colomliia, but these are supposed to be without 

 dermal edges to the toes." Dr. Stejneger also adds that these specimens are 

 much larger than certain so-called L. melanonotus which are in the United 

 States National Museum, and which are probably adult because the males 

 have welWeveloped manual spines. 



Tongue oval, slightly nicked behind. Vomerine teeth in two slightly 

 curved series behind the choanae. Nostril nearer the tip of the snout than 

 the eye. Tympanum half the width of the eye. Toes very conspicuously 

 fringed. Subarticular tubercles well developed ; two small metatarsal tubercles. 

 Skin smooth, with few warts above. A ventral discoidal fold and well- 

 marked dorso-lateral folds. Deep slaty above with indistinct darker marking. 



