1922. J 



Japanese species o/'OceanocJroma. 



430 



Measurements o£ the Japanese specimen are as fol- 

 lows : — 



I Exposed 

 culmen. 



Wins 



Tail. 



Matsudaira's 



Coll. No. 



812. 



Nikko, 

 Japan. 



la inm. 



147 jGlJa (lateral) 

 (51 (central) 



,., Mid. toe I Depth of 



**' ■'*'"^' and claw.l tail-fork. 



21 



22 



Oceanodronia monorhis monorhis (Swinhoe). 



Tlialassidronia monorhis Swiuh. Ibis, 18G7, p. IJ86 ; 18(JU, 

 p. 348 : Amoy, (Jhiua. 



kSwinboe's Fork-tiiiled Petrel is only known from near 

 Vladivostock, Japan (Prov. Miitsu, N. Hondo, Loo-Choo Is.), 

 and coast of (*hina (Amoy). Swinhoe says thiit it had been 

 found Ijreediiij; in the Liu-Kiu Islands *, hut Dr. Ilartert 

 writes as follows : — " Die Ajigabe vom Nisten auf den 

 Riu-Kiu-Inseln ist zweifelhaft " f- 



I have examined only two specimens of the form from 

 Japan. One of these is preserAed in the Science (j^oUege 

 Museum, Tokyo ; it was obtained in the Prov. Mutsu, 

 N. Hondo, and has already been mentioned by Dr. Stcj- 

 neger +. Another one is in the possession of Viscount 

 Matsudaira, and was obtained in l^rov. Yanuito, S. Hondo, 

 date unknown. This is a new locality for the form in 

 Japan. 



The latter specimen measured by me is as follows : — 



r Extjosed ,,». 



Loc. , ,' W injr. 



cuinieu. ^ 



Tail. 



and claw. i tail-fork. 



Matsudaira's I Yamato, |H'5 mm. 141 I 63'5 (lateral) 24 

 Coll. No. Hondo. ' 1 | 



4596. I I 1 5l)'5 (central) 



The length of wing and tail of this specimen somewhat 



* Swiuho,!, P. Z. S. 1871, p. 422. 



t Hartert, Viig. pal. l^aun. ii. p. 141(i. 



X Stejneger, i'roc. U.S. Nat. Mus. xvi. p. t)22. 



