216 DR. H. GADow ON MEXICAN [June 6, 



Yucatan to the State of Vera Cruz, absolutely confined to the 

 Atlantic Tierra Caliente, in forest-land ; arboreal, or rather amongst 

 shrub-like trees, the brown bai-k of which this curious-looking 

 gentle lizard looks to for protection. Tt feeds upon insects. 



Loimanctus. — The two Mexican species are excessively rare, 

 perhaps because they live higher up in the trees, where it is then 

 next to impossible to discover them. L. serrattos is known from 

 Campeche and the States of Vera Cruz and Oaxaca without localities. 

 L. longipes, hitherto known from Jalapa only ; all the more re- 

 markable is the solitary specimen which I found amongst a 

 collection sent to the Field Columbian Museum from the State of 

 Colima. 



Anolis, with at least a dozen species in the Eastern or Western 

 Tierra Caliente. A, nehidosus has the widest range in Mexico, 

 from Tehuantepec to Jalapa, and to Ventanas on the west ; I 

 found it not only on the coast of Guerrero, but also on the 

 Nevado de Colima, up to at least 7600 feet, together Avith A. lio- 

 gaster. A. gadovii at Tierra Colorada, in bush-land. The Anolis 

 seem to spend most of their time on the lower branches of shrubs 

 and trees or amongst the rank herbaceous vegetation, waiting for 

 insects, and trusting to not being seen when basking. Especially 

 when they have become excited by being pursued, the males 

 stretch out their mostly beautifully-coloured gular sac. None 

 of the Mexican species which I have observed displays any marked 

 change of colour like the A. caroUnensis, the " Chameleon" of the 

 Americans. 



Tejid.e* are clearly a Neotropical family, with several dozen 

 genera in South America. Of all these, only Ameiva and the 

 closely-allied CnemidojjJiortts extend through and beyond Central 

 America : Ameiva into the Eastern a,nd Western hot-lands of 

 Mexico and into the Antilles ; Cnemido2}hortos through Mexico 

 into the United States, where C, sexlineatus has spread over nearly 

 the whole Union. This genus is entirely terrestrial, prefei'ring 

 sandy districts with bush-land ; only C. guttatus is a typical 

 inhabitant of the lowland forests of Vera Cruz. The Mexican 

 species avoid the high plateau, 5000 feet being about the upper 

 limit. The only exception is made by C. gularis, which has 

 been credibly recoi'ded from Guanajuato, and of v/hich I have 

 examined specimens collected by Dr. Meek close to the town of 

 Puebla, which lies at an altitude of more than 7600 feet, higher 

 than the Valley of Mexico, where Cnemiidophorus does not occur. 



Concerning distribution and variation, cf. my paper, " Evolution 

 of the Colour-pattern and Orthogenetic Variation in certain 

 Mexican Species of Lizards, with adaptation to their surroundings," 

 Proc. Roy. Soc. vol. Ixxii. p. 109 (1903). 



Ameiva undidata, the only species in Mexico, is an inhabitant 



* From tlie Aztec " teco-ixin," i. e. Rock-lizard, the name of Sceloporus torqiiatus, 

 misspelt and misapplied. Tlae Zapotecs and Mazatecs call Cnemidophoms and 

 Ameiva Zvimbichi and Cachmnbo. 



