120 A Collection of Fishes from Sainoa. 



in front of pectoral origin, not quite reaching halfway to anal, spine half of length 

 of fin. Vent directly in front of anal. 



Color when fresh in alcohol rich blackish-chocolate, largely uniform, with slight 

 lilac tinge on branchiostegal region. Fins all largely blackish; also blackish blotch 

 on opercle. Iris dark brown. Length 61 mm. 



Type No. 50,563 A. N. S. P. Cove south of Aua village, 100 feet and northwest of 

 Dr. Mayor's "Aua line." Taken by lifting bunches of coral from the bottom, April 

 5, 1917. 



Also No. 50,564 paratype, A. N. S. P., same data: Head 2.5; depth 3; D. VII, 20; 

 A. Ill, 17; scales from shoulder to median caudal base 50 and 11 more on latter; snout 

 5.2 in head from upper jaw tip; eye 4; maxillary 2; interorbital 7; length 55 mm. 



This interesting species has no close aUies and is the first occurrence of the family 

 in Samoan waters. 



(Named for Samoa.) 



POMACENTRIDiE. 



Pomacentrus melanopterus Bleeker. 



One from Pago Pago, 86 m.m., differs from Bleeker's figure,^ as he shows the pre- 

 orbital with a spine, the suborbital rim serrate, and the posterior edge of the preoperclc 

 almost entirely serrate. The black pectoral basal blotch is shown as a dark bar within 

 a crescent. Bleeker says,'^ however, "ossibus suborbitahbus alepidotus — non vol 

 vix denticulatis; osse praeorbitali . . . incisura plus minusve profunde ab ossibus 

 suborbitahbus ceteris distincto, postice rotundo vel in spinuUum desienta." 



Pomacentrus nigricans (Lac6pSde). 



Two young and one adult from tide-pools near Double Point, just west of entrance 

 to Pago Pago Harbor. Apparently the same as Jordan and Scale's material, as the 

 squamation extends much further forward than shown by Giinther.' All our examples 

 show a black blotch at pectoral axil and another at last dorsal ray bases. 



Pomacentrus albofasciatus Schlegel. 



Our material includes 4 examples from coral in the reef in front of the hospital 

 at Pago Pago Harbor; 10 from cove just south of Aua village; 2 from tide-pools near 

 Double Point, just west of entrance to Pago Pago Harbor. 



Abudefduf coelestinus (Cuvier), 



Young example with 6 transverse dark bars, largely reflected on fins, though dorsals 

 and anals largely and caudal completely whitish. Length 18 mm. Pago Pago. 



Abudefduf glaucus (Cuvier). 



Four small examples from cove just south of Aua village, and 24, all dull and uniform 

 in color, from tide-pools near Double Point, just west of entrance to Pago Pago Harbor. 



Abudefduf zonatus (Cuvier). 



Seventeen from Pago Pago. No trace of the white lateral bar, though head and 

 back are thickly spotted with pale blue. Bleeker's figure* does not show the blue 

 spots as distinct and variegated as in oiu- examples. 



Ghjphidodon brownnggii Giinther^ has been referred to the present species, but 

 none of his figures show spots, and though his figure A is perhaps closer, it has the 

 dorsals and anals broadly dark. 



> Atlas Ich., IX, 1877, pi. 42, fig. 6. 



2 Nat. Verb. Hollands. Maatsch. Wetensch. (Mem. Pomacent.) (3), Deel. 2, No. 6, 1877, p. 55. 



'Jour. Mus. Godeffroy, VII (Heft, xv), 1881, pi. 124 f.y. 



* Atlas Ich. IX. 1877, pi. 407. fig. 3. 



• Jour. Mus. Godeffroy, VII (Heft, xv), 1881, pi. 127, figs, a, c, e. 



