334 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



ELAPHE CONSPICILLATA" (Boie). 

 DJIMEGURI. 



1826. Coluber conspicillatus Boie, Isis, 1826, p. 211 (type-locality, Japan; Blomhoff, 

 collector); Bijdr. Natuurk. Wetensch., II, Pt. 1, 1827, p. 262.— Schlegel, 

 Phys. Serj)., 1837, II, p. 171 (Japan). — Temminck and Schlegel, Fauna 

 Japon. Kept., 1837, p. 85; Ophid, pi. iii (Japan). — Hilgendorf, Mitth. 

 Deut8cli. Ges. Ost-Asiens, I, heft 10, 1876, p. 30 (Tokyo).— Fritze, Mitth. 

 Deutsch. Ges. Ost-Asiens, V, heft 46, 1891, p. 239 (not seen in Yezo).— 

 Boulenger, Cat. Sn. Brit. Mus., II, 1894, p. 51 (Yokohama; Nikko; 

 Haruna Hills). — Boettger, Kat. Schl. Mus. Senckenberg., 1898, p. 52 

 Hondo).— Wall, Proc. Zool. Soc. London, 1903, p. 100 (Nagasaki); 1905, 

 II, p. 513 (Hondo, Tanega II.). — Elaphis conspicillatus JyvuEuih andBiB- 

 RON, Erpet. Gen., VII, Pt. 1, 1854, p. 285 (southern islands of Japan). — 

 Hilgendorf, Sitz. Ber. Ges. Naturf. Fr. Berlin, 1880, p. 114 (Tokyo).— 

 Okada, Cat. Vert. Japan, 1891, p. 68 (Tokyo; Osaka; ^ikko). —Elaphis 

 conspicillata Martens, Preuss. Exijcd. Ost-Asien, Zool., I, 1866, p. 112; 

 1876, p. 379 (Nagasaki). 



1860. Proterodon icssellatus Hallowell, Proc. Phila. Acad., 1860, p. 499 (type- 

 locality, Japan). — Dinodon ? tessellatus Boulenger, Cat. Sn. Brit. Mus., 

 1, 1893, p. 364. 



1878. Coronella perspicillata Mueller, Verhandl. Naturf. Ges. Basel, VI, Pt. 4, 

 p. 595 (lapsus). 



The specimen whicli served Hallowell for the type of the new genus 

 and species Proterodon tesselhtus was probably never entered in the 

 catalogue of the National Museum, and seems to have been lost. 

 Boulenger has referred it, with a query, to the genus Dinodon,'' but I 

 have no doubt that Hallowell described a fully adult Elaphe conspi- 

 cillata, which he failed to recognize as such, because of the disap- 

 pearance of the characteristic markings on head and back. Scale 

 formula, coloration, and all, agree with E. conspicillata. Even the 

 dental formula, as given by him, does not deviate so very far from 

 what I find in my specimens, in which the posterior teeth are decidedly 

 smaller than those preceding them. 



Description (figs. 284-28Q) .—Adult male; U.S.N.M. No. 34025; 

 Mori, near Yokohama; October, 1902; Owston, collector. Rostral 

 very much broader than liigh, visible from above; internasals squar- 

 ish, broader than long, much shorter than prefrontals which are in 

 contact with supraoculars; rostral as long as its distance from tip of 

 3nout, and longer than interparietal suture, twice as large as the rather 

 narrow supraocular; parietals much longer than distance of frontal 

 from tip of snout; nostril large, rounded, between two nasals, of 

 which the posterior is considerably larger than anterior; loreal rather 

 small, wider than high; one preocular not in contact with prefrontal; 

 no subpreocular or subocular; two postoculars; temporals large, 



o Signifying spectacled, from conspidlla, medieval Latin for a. pair of spectacles; 

 referring to the black markings on the head of the young. 

 b Cat. Snakes Brit. Mus., 1, 1893, p. 364. 



