HERPETOLOGY OF JAPAN. 549 



NiKKo; mountain district about 100 miles north of Tokyo, in the province of Shimo- 



zuke. In a more restricted sense the name ajjplies to the locality of the mausoleums 



of the Tokugawa shoguns. The altitude of the latter is about 2,000 feet above the 



sea. 

 NiPHON, or Nippon; often used by older writers to designate the main island, now 



known as Hondo. 

 NiSHiOMOTE shima; same as Iriomote shima. 

 NoTo; province on the west coast of Hondo, forming a curved peninsula in the Sea 



of Japan, about the middle of the island. 

 Ogasawara; Japanese name for the Bonin Archipelago. 

 Ohoshima; same as Amami-o-shima. 

 Okinawa shima; by earlier writers called Great Loochoo, is the largest island of 



the Riu Kiu Archipelago, situated about halfway in the chain of islands between 



Kiiisiu and Formosa. 

 Okinawa subgroup, Riu Kiu, comprises the southern islands of the middle group, of 



which Okinawa shima is the largest. Many other islands belong to this subgroup, 



some of them forming minor groups such as the Kerama cluster and the Iheya 



cluster. 

 Okinoerabu shima; one of the islands of the Amami-6-shima subgroup, Riu Kiu. 

 Omachi; village in the northern part of the province of Shinshiu, not far from the 



boundary of the province of Etchu. 

 Omaya Saki, or Omaezaki; province of Totomi, the promontory marking the western 



end of Suruga Bay. 

 Omi; province in southern Hondo, surrounding I>ake Biwa. 

 Onomichi; city on the inland sea in the province of Bingo. 

 Onsen; mountain near Shimabara, province of Hizen, Kiusiu. Type-locality of 



Tachydromus holsti. 

 Ooshima; same as Amami-o-shima. 



Osaka; large cit^ in southern Hondo at the mouth of the Yodogawa. 

 Osakigawa; river in southern Hondo, in the jjrovinces of Mimazaka and Harima. 

 Osen, Mount; erroneous for Mount Onsen. 

 0-shima; common name for various islands, the principal ones being Vries Island or 



Idzu-no-Oshima; and Amami-6-shima, also known as O-shima (Saitsuma) and by 



older authors as Oushima, Ohoshima, etc. 

 Oshima-Okinawa group; large middle group of the Riu Kiu Archipelago, subdivided 



into the northern Amami-6-shima subgroup and the southern Okinawa subgroup. 

 OsuMi, a province in Kiiisiii at the southeastern extremity of the island. 

 OsuMi GROUP of the Riu Kiu curve comprises the larger islands south of and nearest to 



Kiiisiii, to which they seem to belong biotically and geologically, the principal 



ones being Tanega shima, Yaku shima, Kuchinoerabu shima, and KiU"o shima. 

 Oxjsima; same as Amami-o-shima. 



Owari; province on the south coast of Hondo, at the head of the deep Owari Bay. 

 Oyama; province of Sagami, a celebrated mountain, 4,150 feet high, about 22 miles due 



west of Yokohama. Also the village at the foot of the mountain. 

 Parry group; same as Mukoshima. 

 Pa-tchung-san; Chinese name for Ishigaki shima. 

 Peel Island; same as Chichi shima. 

 Pescadores; small group of islands on the west coast of Formosa, on the Tropic of 



Cancer. Japanese name H6ko-t6. 

 Pinnacle group; number of small islands northeast of Formosa and north of the 



Saki shima group, Riu Kiu, the principal island being Hoa-pin-su. 

 Port Lloyd; same as Chichi shima. 

 Ralousima; see p. 23 of this work. 



