380 BULLETIN 58, UNITED STATES NATIONAL MUSEUM, 



underside pale yellowisli, each ventral usually marked with two well- 

 defined, but irregularly placed, dark brown spots which, however, 

 show a tendency to an arrangement in two longitudinal rows; under 

 the tail a broad well-defined median band of similar color occupying 

 the suture between the subcaudals and also extending down the 

 middle of the anal ; no nuchal collar, nor any yellowish spots at base of 



tail. 



I)imcnsio7is. 



mm. 



Total length 162 



Snout to vent 152 



Vent to tip of tail 10 



The male is distinguished by a longer tail with a larger number of 

 subcaudals. 



Variation. — A specimen from Okinawa shima in the Hamburg 

 Museum (No. 1567) collected by Doctor Warburg is very similar in 

 scale fornmla, viz, sc. 13; v. 158; a. 1; c. 15; oc. 1-1; 1.4; 1st pair of 

 lower labials in contact behind mental; second pair of chin-shields 

 in contact; frontal four times as broad as supraocular; parietals 

 longer than frontal. Coloration is also essentially like the one 

 described above, there being no collar, and no yellow spots at base 

 of or at end of tail, but there are two dorsal stripes more; the median 

 dark stripe is two scales wide and separated by an interspace of equal 

 width on both sides from the other stripes, of which there are five on 

 each side; bell}^ irregularly spotted with dark brown; a broad dark 

 stripe along middle of underside of tail. 



Science College Museum No. 13, from Okinawa shima is also similar 

 in coloration, lacking collar and spots on tail, but has 26 pairs of sub- 

 caudals, being a male. 



Habitat. — Thus far this Calamaria is only known from the Riu Kiu 

 Islands, where it has been collected both in the southern group, viz, 

 on Miyakoshima, and in the middle group, on Okinawa shima, a 

 specimen from each of these localities being in the Tokyo Museum. 

 A third- specimen, from the latter island where Doctor Warburg col- 

 lected it, is in the Hamburg Museum. 



List of specimens of Calamaria pfefferi. 



n Type; description p. 378; figs. 313-316. 



h P. 380. 



