FISHES OF BORNEO. 269 



Family POLIXBMID^E. Thread tins. 

 Polydactylus zophomus Jordan and McGregor. 



Five pectoral appendages, the longest not extending beyond jnicldle 

 of pectoral; posterior half of dorsal black; a black spot at origin oC 

 lateral line; pectorals shaded with dusky punetulations ; tip of ventrals 

 with a slight dusky wash; general color unifonu silverj'. Nos. 2^48, 

 2624, 2638, and 2687; length, 90 to 100 millimeters. 



It is possible that P. zoplionius Jordan & McGregor is another synonym 

 for P. plcieim (Broussonet). 

 Polynemus tetradactylus Shaw. 



Four pectoi'al appendages, the longest of which extends to middle 

 length of ventrals; tips of fins, except ventrals, shaded with dusky. 

 Head 3.50; depth 3.7-5. General color silvery with slight brownish wash 

 above. No. 2489 ; length, 265 millimeters. 



A common food-fish of Borneo; also recorded from the Philippines. 



Family SYXGA^ATHID^E. Sea-horses. 

 Hippocampus kuda Bleeker. 



A series of four specimens illustrates a considerable degree of variation 

 in this species due to age ; the older specimens are much less spinate 

 than the young; a very decided change is seen in the coronet which in 

 the younger form is decidedly five-spined, but with advancing age the 

 front spines gTadually atrophy, lea-sang a three-spined coronet. 



The colo'r varies from yellowish-white in young to almost black in 

 adult; usually some five black specks are discernible; all show a more 

 or less banded appearance of the snout. Nos. 2727, 2728, 2729, and 

 2730 ; length, 100 to 140 millimeters. 



This species is common in Borneo, and also has been taken at numerous 

 points in the Philippines. 



Hippocampus barbottri described by Jordan and Richardson ^ from 

 Cuyo Island is doubtless this species. 

 Gasterotokeus biaculeatus Bloch. 



i^os. 2731, 2732, 2733, 2734 and 2735 ; length, 205 millimeters. 



This species is used. to a considerable extent in China as medicine; it 

 is common in Borneo and all over the Philippines. 



Family STEOMATEID^. Butterfishes or Pomfi-ets." 

 Stromateus cinereus (Bloch.). 



Head 3.50; depth 1.50; eye 3.50 in head; snout 1.25 in eye; inter- 

 orbital 2 in head. Xo ventrals. Anteiior rays of dorsal and anal 

 elongate. 



= BuU. U. ,S. Bu. of Fisheries (1908), 27, 247. 



" In Hongkong fishes of the family Stromateidw are called pomfrets. 



