6 University of Michigan 



without the development of any marginal tubercles. This ill- 

 drawn figure — and the description is also perfectly vague — 

 apparently misled Boulenger into re-naming Anolis latifrons 

 as Anolis pnnceps.^ I have seen an authentic specimen of this 

 form in the University of Michigan Museum, thanks to Dr. 

 Ruthven. 



The most common species met with was what we con- 

 sider to be Anolis limifrons, a slender little beast with an 

 ivory white dewlap in life, and Anolis binotatns, reaching a 

 far larger size and with the dewlap brilliant carmine enclosing 

 a small, black, central spot. In life binotatus is rich olive- 

 greenish, with dirty yellow blotches on the limbs and dark 

 markings on the body. It has a way of resting rather flattened 

 against bark with its legs sprawling and spread out, and the 

 whole result of attitude and Coloration is very strikingly 

 lichen-like. The narrow dark band between the eyes and the 

 dark perioccipital vitta are conspicuous and constant mark- 

 ings in life. We secured a few specimens of Anolis stig- 

 mosus, but the species seems much less abundant on the main- 

 land than on the islands in the Gulf of Panama. We only 

 found one other true Anolis which was a rather common spe- 

 cies, having a dewlap pinkish toward the margin and dusky 

 toward the base, if I remember correctly. Unfortunately, I 

 omitted to make notes of this in life. After many perplexi- 

 ties, I have concluded that this form is so near Anolis gaigei 

 Ruthven of the Santa ]\Iarta Mountains in Colombia that for 

 the present, at any rate, our Sapo Mountains individuals had 

 best bear this title. 



Our most surprising treasure was a new genus of rather 

 baffling affinities. The form of the body and the structure of 

 the digits recalls true Anolis ; the cephalic squamation resem- 



- Ann. Mag. N. H., (7), 9, Jan., 1002, p. 54. 



