222 Proceedings of the Biological Society of Washington. 



Eupemphix trinitatis Boulenger. 



I have identified with this pecuHar species a single frog whicJi Doctor 

 Clark brought from Milford Bay. It agrees fairly well with Boulenger's 

 description (Ann. Mag. N. H. [6], ?>, 1889, p. .307), but I confess I 

 would like to compare it with topotypes from Trinidad. Unfortunately 

 the creature has so far failed to turn up in any of the collections which 

 have been made in Trinidad by Thaxter, Rorer and others. J. H. Hart, 

 who discovered it in the Botanical Gardens at Port of Spain, wrote Boul- 

 enger that it was only found when half drowned in a fountain or similar 

 receptacle of water to which it had repaired to spawn but from which it 

 could not escape. 



It is, of course, new to the fauna of Tobago, and is one of the most 

 interesting finds which Clark made. 



Bufo marinis (Linne). 



Abundant throughout the island as would be expected. Several pre- 

 served from Milford Bay. 



Hyla crepitans Wied. 



A single very large adult from Milford Bay, April, 1916. The species 

 is common in Trinidad but has not appeared in previous collections from 

 Tobago so far as I am aware. 



Ig^uana iguana (Linne). 



Under the more recent name of /. tuberculata Laur. , this species has 

 been reported from Tobago by Boulenger, Ludlam coll. There are two 

 adults in the collection made by Clark at Milford Bay. 



Anolis trossulus (Tarman. 



A single specimen of this species was sent to the Museum from Tobago 

 by Mr. J. B. Rorer of Trinidad several years ago. He wrote that it was 

 not uncommon. Clark's collection contains a number of additional 

 examples. A comparison with the types of trossulus fails to reveal any 

 difi"erence between the series from the two islands. It is really surprising 

 to find this Anolis, hitherto thought to be confined to Grenada, abundant 

 upon Tobago. Its presence only serves to emphasize the really transitional 

 character of the fauna of these lower islands between St. Vincent and 

 Venezuela. St. Vincent typically Antillean, Grenada less markedly so, 

 while Tobago and Trinidad are far more continental in character than 

 Antillean. 



This is doubtless the species which Cope recorded from Tobago as 

 Anolis alligator D. & B. 



Polychrus marmoratus (Linne). 



A single specimen brought alive to Doctor Clark by a negro boy at 

 Milford Bay. Clark tells me that this example, which is excellently pre- 



