FISHES OF BORNEO. 2t)l) 



Famil.y POLIN'KMID/E. Threadlins. 

 Polydactylus zophomus Jordan ami ]\Ic(!i-egor. 



Five pectoral appendages, tlie loiii^vst not extending beyond middle 

 of pectoral; posterior hall' of dorsal black; a black spot at origin of 

 lateral line; peetorals shaded with ilusky punctTilations ; tip of ventrals 

 with a slight dusky wash; general color uniform silvery. Nos. 244H, 

 ■>&2-i, 2038, and 5USr ; length, !K) to 100 millimeters. 



It is possible tbat P. zophoDius Jordan ct ;\lcGrregor is another synonym 

 for P. pleheim (Broussonet). 

 Polynemus tetradactylus Sliaw. 



Four pectoral appendages, the longest of which extends to middle 

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

 Head 3.50; depth 3.1."). Geneial color silvery with slight brownish wash 

 above. Xo. 2489; length, 2G5 millimeters. 



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



Family SYlYGNATHID.E. Sea-horses. 

 Hippocampus kuda Bleeker. 



A series of four specimens illustrates a considerable degree of variation 

 in this species due to age; tlie> 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 •(\ith advancing age tlie 

 front spines gradually atrophy, leaving a three-spined coronet. 



The color \arics from yellowish-white in young to almost black in 

 adult; usually some five black s})ccks are di-^cernible; all show a more 

 or less banded appearance of the snout. Xos. 2 727, 27 28, 2720, and 

 2730; length, 100 to 140 millimeters. 



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

 points in the Philippines. 



Hippoca?npiis harhouri described by Jordan and liicliardson " from 

 Cuj'o Island is "doubtless this species. 

 Gasterotokeus biaculeatus Bloch. 



Xos. 2731, 2732, 2733, 2734 and 2733; length, 20:) millimeters. 



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

 is common in Borneo and all over the Pliilippines. 



Family STROMATEIDiE. Butterfishes or PomtVets." 

 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. Anterior i-ays of dorsal and anal 

 elongate. 



''Bull. U. S. Bu. of Fisheries (1908), 27, 247. 



« In Hongkong fishes of the family Stromateidm are called pomfrets. 



