92 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



about predorsal. Iris whitish or silvery, turns gray or slate in pre- 

 servative. Fins all pale or whitish, with dusky tinge terminally on 

 spinous dorsal. 



East Indies, Philippines, Micronesia, Polynesia. A very abundant 

 species, small and quite uniform in its general coloration. Changes 

 with age slight. The elongated, filamentous, anterior or second dorsal 

 spine variably long, perhaps sexual. 



Jordan and Seale have attempted to establish the genus Mionorus 

 Krefft largely with reference to this species. Their statement "the 

 palatines provided with teeth, and the two limbs of the preopercle 

 both strictly entire" for generic characters do not agree, though 

 variable in form and coloration intergrading forms frequent. Appar- 

 ently the males are more slender than the females and usually without 

 the filamentous dorsal spines. Most females have long dorsal spines 

 and are without the black basal caudal spot. 



19127. Beach at village near Chase Head, Endeavor Strait, Palawan Island. 



August 9, 1909. Length 28 to 46 mm. 13 examples. 

 G754. Beach at village near Chase Head. December 22, 1908. Length 30 mm. 

 Six examples. Biri Channel, east coast Luzon. June 2, 1909. Length 41 to 



49 mm. 

 Twenty-one examples. Bolalo Bay, Palawan Island. December 21, 1908. 



Length 26 to 47 mm. Male with buccal ova. 

 23712. Busin Harbor, Burias Island. March 8, 1909. Length 49 mm. 

 18512. Butauanan Island, east coast Luzon. June 13, 1909. Length 51 mm. 



(1307). 

 Nineteen examples. Canmahala Bay, Luzon. March 11, 1909. Length 33 to 



51 mm. 

 23649. Caracaran, Batan Island. June 8, 1909. Length 45 to 50 mm. 2 



examples. 

 Ten examples. Cataingan Bay, Masbate Island. April 19, 1908. Length 40 



to 52 mm. 

 16103 to 16106. Cataingan Bay. May 14, 1909. Length 41 to 43 mm. 

 Twenty-two examples. Endeavor Strait, Palawan Island. December 22, 1908. 



Length 34 to 48 mm. 

 122, 123, 129, 24074. Endeavor Strait. December 23, 1908. Length 35 to 



44 mm. 

 23300. Makesi Island, Palawan Island. April 5, 1909. Length 49 mm. 

 Three examples. Mantacao Island, west coast Bohol. April 8, 1908. Length 



40 to 44 mm. 

 21970. Murcielagos Bay, Mindanao. August 9, 1909. Length 92 mm. 

 Two hundred forty-five examples. Near Palag Bay, Luzon. June 16, 1909. 



Length 28 to 48 mm. 

 Nine examples. Philippines. Length 41 to 53 mm. 

 One hundred eighteen examples. Port Jamelo, Luzon. July 13, 1908. Length 



26 to 48 mm. 

 16538 to 16541. Port Matalvi, Luzon. November 22, 1908. Length 39 to 44 mm- 

 8429. Port Matalvi. November 23, 1908. Length 29 to 47 mm. 46 examples. 

 One example. Port Palapag, east coast Luzon. June 2, 1909. Length 40 mm. 

 23262. Port Palapag. June 3, 1909. Length 50 mm. 

 Fifty-six examples. Port Uson, west of Pinas Island. December 17, 1908. 



Length 31 to 56 mm. 



