36 PROCEEDINGS OF THE NATIONAL MUSEUM Vol.66 



lenger. Among Sowerby's Fukien material there is also a gecko 

 collected by him at Foochow. As far as the web of the feet is con- 

 cerned, it is a typical G. subj)aIinotus^ but the back is regularly 

 covered with small though distinct tubercles, and the median chin 

 shields are rather well developed. As Boulenger in recording the 

 La Touche specimen gave no details, I wrote to Miss Joan B. Procter 

 asking her to examine it with regard to the above points. She kindly 

 replied that the dorsal skin is uniformly granular without any of 

 the tubercles proper to G. jajjonicus^ that it also has a well-defined 

 interdigital web and small chin shields, and is in every way the 

 typical G. suhpahnahis. I am therefore strongly inclined to the 

 belief that the tubercles of the Sow^erby specimen are the result of 

 admixture of G. japonicus blood, especially as FoochoAv is a seaport, 

 while the Kuatun locality is a considerable distance inland. 



GEKKO SWINHONIS Guenther 



For synonymy see Stejneger, Herpetology of Japan, 1907, p. 166, footnote. 

 Add: 



Gecko sivinhoei Werner, Abh. Bayer. Akad. Wiss., II Kl., 1903, p. 360 



(Tientsin). 

 Gekko swinhonis Barbour, Proc. New England Zool. Club, vol. 4, Nov. 

 1909, p. 61 (Sian, Sbensi). — Van Denburgh, Proc. California Acad. Sci., 

 ser. 4, vol. 3, Dec. 16, 1912, p. 207 (Cliefu). 

 Gecko japonicus Sowerby in Clark and Sowerby, Through Sheu-Kan, 1912, 

 p. Ill (Kansu, Shensi). 



Mr. Sowerby collected five specimens at Pei-tai-ho in north- 

 eastern Chili, on the north side of the Gulf of Pechili, during August, 

 1921 (Nos. 64875-79). They are perfectly typical of this form with 

 small and few tubercles, hardly any in front of the shoulders. In 

 some there are a few tubercles on the temples, but the amount and 

 size of the temporal tubercles do not seem to be of any diagnostic 

 importance. The chin shields vary to some extent, being mostly of 

 median size, in one specimen rather large, in two rather small. 



Three specimens (Nos. 39343-45) collected by him in Kansu, 20 

 miles west of Chingyangfu, on August 7, 1909, are likewise referable 

 to this subspecies. 



A young specimen (No. 39342) collected by him 20 days later at 

 Cliing-chien-hsien, Shensi, is somewhat dubious in its relationships. 

 The tubercles are rather well developed and numerous on the back 

 as well as on upper neck and on the temples, though there are none 

 on the occiput. On the other hand, the chin shields are small, sepa- 

 rated by a small median one, much as in extreme G. swinhonis. I 

 can discover no trace of a web. Have we here to do with an admix- 

 ture of G. japonicus blood accounting for the great development of 

 the tubercles'^ I am the more inclined to think so since Doctor 

 Barbour, in recording five specimens from Sian, or Sigan (Hsi-ngan), 



