PTYCHOZOON 101 



PTYCHOZOON INTERMEDIA Taylor 

 Plate 5 

 Ptychozoon intermedia Taylor, Philip. Journ. Sci. § D 10 (1915) 94. 



Description of species. — (From No. 1776, Bureau of Science 

 collection; collected at Bunawan, Agusan Province, Mindanao, 

 July 12, 1912, by E. H. Taylor.) Rostral large, rectangular, 

 with a triangular depression in upper edge; nostril surrounded 

 by rostral, first labial, two postnasals, and a rather large supra- 

 nasal; latter distinctly triangular, forming a suture with its 

 mate behind rostral; a large scale lies partly between supra- 

 nasals; a small roundish scale on either side of this, directly 

 behind supranasals, touching superior postnasals, eleven upper 

 labials, ten lower; mental much smaller than rostral or any of 

 first five lower labials, followed by two postmental chin shields ; 

 latter elongate, widest in the middle; a second smaller pair 

 borders these laterally on each side of the chin shields; a row 

 of scales gradually diminishing in size bordering labials ; scales 

 on snout and supraocular regions of head at least twice as 

 large as those on occiput; latter area with scattered small 

 tubercles; a group, of enlarged scales directly in front of eye; 

 back with uniform granular scales intermixed with flat round- 

 ish tubercles, six or seven irregular rows on each side ; scales on 

 belly much larger than dorsal scales, or those on neck; on 

 each side of head below auricular opening is a dermal flap, 

 widest in front of auricular opening, which continues from 

 near angle of mouth to some distance on neck; a similar flap 

 on foreleg borders the leg entirely; dermal flap on hind leg 

 is wanting from groin to knee; on each side of body a wide 

 dermal flap, or parachute, extends from foreleg, where it joins 

 flap of foreleg, and continues to groin ; tail with a lateral series 

 of small rounded lobes decreasing in size toward tip and directed 

 backward ''sawtooth" fashion; tail with a flap on tip, which 

 is scarcely wider than nearest lobes; each segment of tail with 

 a number of enlarged scales ; above on first half of tail there are 

 from six to eight on each segment, on last half the number is 

 reduced; digits almost entirely webbed; digits, except inner, 

 with claws, and below with undivided lamellae which cover outer 

 half of digit, about ten under longest toe; distal phalanx on 

 inner finger and inner toe replaced by a large flattened scale; 

 a series of ten differentiated preanal scales arranged in a curved 

 line; widely separated from these is a series of differentiated 



