594 PROF. GIGI.IOLl AND COUNT T. SALVADORI ON [DeC. 6, 



AT. PoDiCEPS HOLBOELLi, Reinh. 



Podiceps rubricoUis major, Temm. et Schl. Faun. Jiip., Aves, tab. 

 78 B (1850). 



Colymbus holboelli, Baird, Brewer, & Ridgway, Water- Birds N. 

 Amer. ii. p. 428 (Eastern Siberia and south to Japan). 



a, Vladivostok, October 18/9. 



b, c. Olga Bay, September 1879. 



Specimen a is not in perfect plumage, the feathers on the neck 

 being partly red and partly grey ; b has hardly any traces of rufous, 

 and indeed looks hke a young bird, its underparts are white. 

 Specimeu c is fully adult, and bears the nearly perfect nuptial 

 plumage : grey cheeks, red neck, and darkish underparts. 



This species differs from P. griseigena in being notably a larger 

 bird. It also inhabits North America, including Greenland, whence 

 came the types described by Reinhardt. It has escaped the notice 

 of Pere David. 



REPTILIA. 



1. Trigonocephalus blomhoffii, Boie. 



f. Coluber halys. Pall. Voy. iii. App. 703(1771); Lichts. Voy. 

 Eversmann, Cat. p. 106 (Tartary). 



Trigonocephalus blomhoffi, Boie in Isis, 1826, p. 414 (Japan) ; 

 Scbleg. Faun. Jap., Rept. p. 88, pi. 6 (1834-38); id. Phys. des 

 Serpens, p. 552, pi. 20. figs. 8, 9 (1837); Dum. et Bibr. Herp. 

 vii. part 2, p. 1496 (1854). 



a, b. Avahuna river, Olga Bay, September 1879- 



c, d. Fusan, August 7th, 1880. 



The first two are larger and much finer specimens, the two from 

 Corea are not only smaller but less well preserved ; all are in spirit. 

 The dark markings on the upper parts of the two Olga Bay speci- 

 mens are most conspicuous and have a greenish tinge. From the 

 note on the label attached to the bottle which contained them, it 

 would appear that they were caught in the river. 



I cannot divest myself of the idea that this species and T. halys 

 are one and the same ; in that case the latter name has the priority ; 

 but I have no western, or rather Caspian, specimens to compare 

 ■with my eastern ones. These agree perfectly with Schegel's de- 

 scription and plate of Japanese specimens. 



2. Tropidonotus tigrinus, Boie. 



Tropidonotus tigrinus, Boie in Isis, 1826, p. 206 (Japan) ; 

 Scbleg. Faun. Jap., Rept. p. 85, pi. 4 (1838); Gunth. Cat. Colubr. 

 Snakes B.M. p. 71 (1858). 



Amjjhiesma tigrinum, Dum. et Bibr. Erpetologie, vii. part 1, 

 p. 732 (1854). 



a. Avahuna river, Olga Bay, September 1879. 



b. Gensan, August 16th, 1880. 



The first is a fine specimen preserved in spirit; the second is 



