July 1 

 1921 



] BARBOUR — SOLOMON ISLAND REPTILES 99 



and three fourths tunes as long as broad; upper parts very 

 warty, with an interrupted glandular dorso-lateral fold; belly 

 granulate bufoniformis. 



Tympanum two fifths to one half diameter of eye; tibio- 

 tarsal articulation reaching eye; tibia three to three and one 

 half times as long as broad; upper parts smooth or warty; 

 belly feebly granulate opisthodon. 



Now, most of these characters will be seen at once to be 

 chiefly of degree, and not of kind. The degree of wartiness on 

 the back, and of granulation on the belly, might be expected to 

 vary with age and with various preservation; this is the case. 

 The size of the tympanum and the length of limb, while more 

 stable characters in this case, nevertheless overlap, and no great 

 variabihty is necessary to bring this about, as a glance at the 

 key will show. The only character then, which might really be 

 expected to separate the species, proves to be most unstable, 

 and I cannot find any line which will separate our series into 

 two categories. 



This species likewise pertains to Discodeles. Dr. Mann cap- 

 tured a fine series of various ages, but did not find the remark- 

 able eggs which Boulenger figured and described (Trans. Zool. 

 Soc, 12, 1886, p. 50, pi. 10). We have thirteen adults and young 

 from Ysabel ; eight from Ugi, four very large ; two from Tulagi ; 

 one from Malaita; five from San Cristobal; two from Santa 

 Ana. 



The only previous records were for Faro and Treasury (Mono), 

 both small islands in the Shortland Group, so that Dr. Mann's 

 collection adds greatly to our knowledge of the distribution. 



A single specimen in the Museum, received from the Australian 

 Museum as bufoniformis, but with no definite data except Solo- 

 mon Islands, is really smoother on the back than any of Dr. 

 Mann's examples, but it has a fairly distinct dorso-lateral 

 glandular fold. This example, however, has been preserved for 

 many years, and is soft and flabby. 



