FISHES OF THE PHILIPPINE AND ADJACENT SEAS 13 



and edge rather broadly white. Ventral yellowish or light brown 

 basally, terminally blackish. 



India, East Indies, Queensland, Melanesia, Micronesia, and 

 Polynesia. 



2 examples, Bolinas Bay. May 10, 1910. Length, 45 to 72 mm. 



1 example, Catbalogan, Samar. April 14, 1908. Length, 82 mm. 



3 examples, Catbalogan, Samai-. April 16, 1908. Length, 48 to 70 mm. 

 14445. Catbalogan, Samar. April 16, 1908. Length, 83 mm. 



1 example, Cebu market. August 28, 1909. Length, 51 mm. 



2 examples. Endeavor Strait. December 23, 1908. Length, 41 to 69 mm. 



1 example, Gomomo Island. December 3, 1909. Length, 57 mm. 

 22605. JMompog Island. March 3, 1909. Length, 67 mm. 



2 examples, Nabatas Point, Samar. July 24, 1909. Length, 45 to 57 mm. 

 22436 and 22437. Port Caltom. December 15, 190S. Length, 51 to 68 mm. 



3 examples. Rasa Island, Mantaquin Bay, Palawan. April 1, 1909. Length, 

 46 to 84 mm. 



6 examples, Basa Reef, Gulf of Boni, Celebes. December 17, 1909. Length, 



8 to 50 mm. 

 1 example, Sadaa, Celebes. November 17, 1909. Length, 66 mm. 

 27667 A.N.S.P. Batu Sangkar, Sumatra. Messrs. Harrison and Hiller. Length, 



78 mm. 

 27651 A.N.S.P. Padang, Sumatra. Messrs. Harrison and Hiller. Length, 45 mm. 



Genus DASCYLLUS Cuvier 



Dascyllus Cuviek, Regne Animal, ed. 2. vol. 2, 1829, p. 179. Type CJiaetodon 



aruanus Linnaeus, monotypic. 

 DasciluH (Gronow) Gray, Ann. Mag. Nat. Hist. London, ser. 2, vol. 18, 



January, 1854, p. 44. Type CJiaetodon aruanus Linnaeus. 

 Dasclllus Gray, Cat. Fish. Gronow, vol. 2, 1854, p. 171. Type Chaetodon 



aruanus Linnaeus. 

 P Irene (not Haliday 1833) Gistel, Naturg. Thierr., 1848, p. ix. Type 



Chaetodon aruanus Linnaeus, virtually, as Pirene Gistel a substitute for 



Dascyllus Cuvier. 

 Tetradrachmum Cantor, Journ. As. Soc. Bengal (Cat. Malay. Fish.), vol. 18 



(2), 1849 (1850), p. 1223. Type Chaetodon arcuatus Shaw, monotypic. 



Orbicular. Head deeper than long. Upper jaw protractile. Teeth 

 in narrow band in jaws, small, slender, pointed, outer row somewhat 

 enlarged. Preopercle and sometimes preorbital serrated. Gills 3^. 

 Pseudobranchiae present. Branchiostegals 5. Air-vessel large. 

 Pyloric appendages 2 or 3. Scales moderate, 27 to 30 in lateral series. 

 Snout scaly. Lateral line extends below soft dorsal. Dorsal with 

 12 or 13 spines, rays 12 to 16. Anal spines 2, rays 12 to 15. Caudal 

 little emarginate. 



Indo Pacific. 



ANALYSIS OF THE SPECIES 



o.\ Pellociiromis, new subgenus. Dark or dusky generally, largely uniform, 

 without transverse black bands. 

 6\ Caudal little emai'ginate ; young and adults with whitish dorsal spot and 

 .voung with single white predorsai spot trimaculatus. 



