TEIID LIZARDS OF THE GENUS CNEMIDOPHOEUS 163 



tlicrclore. Ix'caiiu' (l()iil)lt'iil whctlicr Miss Dickcrson's specimens 

 reall}' canie from 'rilniion Islniid. In response to my i'('([ucst for 

 information. Mr. Karl P. Schmitll has kindly Avritten : 'On looking 

 up the data in the (h'partment catalogue, I find numbers 6884-5 

 labeled "LoAver California, received January 3, 1912, N. Y. Z. S." 

 It is therefore not improbable that the two juveniles were really 

 collected on Santa Catalina Island and sent to the American Museum 

 separately from the park of the New York Zoological Society.' I 

 have had no opportunity to examine the type specimen from Tiburon, 

 and therefore introduce the species disparilis here, although I am 

 of the opinion that it may be founded upon a specimen of meJanos- 

 tethus with abnormally large scales on the back of the forearm." 



After an examination of all of the t3'pes concerned the writer 

 fully agrees with Doctor Van Denburgh. Ijut finds that the post- 

 antebrachials, although slightly enlarged, are rather typical in form. 

 The paratypes mentioned are certainly cafaluiensis (as discussed 

 under that form, see p. 213) and the type is typical of melanostethus 

 of the region, having very probably come from Tiburon Island as in- 

 dicated. The coloration of the t^'pe shows a development of the 

 tendency to increase the number of dorsal lines as discussed above. 

 Anteriorly there are six lines, indicating that the form is derived 

 from six to eight striped young, and posteriorly the dark field spots 

 have secondarily become longitudinally confluent so as to (h)uble the 

 number of lines along the l)ack. These lines are all narrow, poorly 

 defined, and more or less reticulated, especially laterally. To the 

 extreme posterior end of the back tlie tendency to become unicolor 

 is evident, and the femora are obscurely spotted, almost monochrome. 

 Below, the throat is smoky and with several dark, transverse bars, 

 Avhile the chest is uniform smoky black. It is obvious that part of 

 the type description came from this individual and comparison of 

 data shows that the measurements given for the type are approxi- 

 mately correct. 



Thus, disparilis is a synonym of meJanostethus { = tessellatus). 

 In further support of this action it may be remarked that a series 

 of specimens in the California Academy of Sciences. deHnitely known 

 to be from Tiburon Island, are all iesseUatiis. Data ou these speci- 

 mens are given below under variation. 



Still another species, estehaiiensls, Avas described by Dickerson, 

 This form is from San Esteban Island, which lies very close to 

 Tiburon. It was said to be closely fJlied to both melanostetJius and 

 punctilineaVis and difi'erences in the proportions of the body were 

 cited in the diagnosis to distinguish it from these two forms. The 

 writer has found that the bodily i)roportions are remarkably uniform 

 thi'oughout tlie fes.scUafK.s group, if u.ot tliroughout the entire genus. 



