104 



BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



RAN A LONGICRUSa Stejneger. 



1898. Rana longicrus Stejneoek, .Touni. Sci. Coll. Tokyo, XII, Pt. 3, 1898, p. 

 216 (type-locality, Taipa, Formosa; type, Sci-'Coll. Mvis. Tokyo, No. 26; 

 T. Tada, collector). 



The head and body of this species resembles greatly R. japonica, 

 the snout being fully as pointetl and elongated, but the most remark- 

 able character is the excessively lengthened hind legs which are 

 actually more than twice as long as the head and body together. 

 Even the fore legs partake of this elongation, though less markedly. 

 The coloration is that characteristic of the group. 



Description of type- specimen. — Adult; Science College Museum, 



Tokyo, No. 26; 

 lector (figs. 81 



Taipa, Formosa: 

 -S3). Vomerine 



September, 1896; T. Tada, col- 

 teeth in two oblique groups 

 behind a line through the center 

 of the choanse, and projecting 

 backward beyond the latter; 

 snout long, pointed, distance from 

 tip to eye much greater than hori- 

 zontal diameter of orbit; nostril 

 nearer the tip of the snout than 

 the eye; interorbital space much 

 wider than upper ej^elid; t}Tii- 

 panum two-thirds the diameter 

 of the eye ; first fmger not extend- 

 ing beyond second; no knob-like 

 protuberance on inner side of 

 thuml); tip of digits not tapering, 

 o])tusely rounded; webs of feet 

 deeply excised, the incision of the 

 web on both sides of fourth toe 

 reaching the middle of the basal 

 phalanx; subarticular tubercles well developed; inner metatarsal 

 tubercle strongly developed, outer one barely indicated; hind legs 

 extremely elongate, the distance from anus to tip of longest toe 

 twice as great as length of head and body; tibio-tarsal joint ot 

 extended hind leg reaching beyond the tip of the snout by the width 

 of the head at the center of the eye; kneejoint of adpressed limb 

 reaches the axilla; heels overlap by the length of the forearm; 

 skin smooth, back and sides indistinctly shagreened with a few 

 irregidar tubercles on the sacrum ; posterior aspect of femurs coarsely 

 granulated; a narrow, but very distinct dorso-lateral fold on each 

 side from posterior border of eye to insertion of hind leg, the nearest 

 approximation of the two folds being equal to the distance between 



Figs. 81-83.— Rana longicrus. Nat. size; 81, 

 TOP OF head; 82, side of head; 83, under side 

 OF FOOT. No. 26, Sci. Coll. Tokio. 



o Signifying long-leg. 



