26G SEALE. 



Type, X". '.^Vk; ]n the collirtion of the Bui'eau of Seience, fi'om 

 Sandakan, Borneo. Leiiglli so millimeters. 



Family SILUKID.K. Catfislies. 



Arius sagor Hamilton. 



IJex,nK,ualichthys sundaicns Blinker, Atlas lehtli. (lS(i2i, 2, 26, pi. l._. 



P,leeker^ gives an exeelleul %ure of this species. It is easily 

 reeognized bv the ban.le.l appearanee of the nj.per half of the body. 

 These bands' extend down to, or slightly below, the single lateral line 

 and are evident even in speeimens which ha^■e been long in alcohol. 

 The young do not sliow the bamleil markings. 



There are four patches of teeth on the palatine, st'parated by inter- 

 spaces. The bony shield at base of dorsal spine is separated from the 

 head shield. -Xo. 5497: length, iili) millimeters; Xos. 24:57, 24G2 and 

 2. "lis ; length, 115 to 13.") millimeters, young. 



The speeies is regarded as an excellent food-lisli and is common m 

 the market of Sandakan. It has not been reported from the Philippines. 



Tachysurus venosus (Ciivier and Valenciennes). 



Ariiif: venosti.<: Bleeker, Atlas Iclith. (lS(i2), 2, 33, pi. 54, fig. 1. 



(iravish with a siher\- ^vasll; the fins have a slightly darker siiade; 

 under parts white. Xos. 2r.l4 and y(i25 ; lengih, 13:. to 170 millimeters. 



Characterized by an almost smooth head. Two triangular shaped 

 areas of villiform teeth on the palate. A common food fish of Borneo. 

 This s]iecies is recorded by C'uvier and A'allenciennes from ^[anila. 



Arius argyropleuron (Kuhl and Van IlasKolt). 



Grayish with a yellowish wash; yellowisli white below. Xo. -'(iS^; 

 length, 145 millimeters. 



Characterized by tlie ovate maxillary ]ialcli of granular teeth, the 

 elongate snout, and the dusky, adiiM.se fin. A food fish of Borneo, not 

 reported from the Philippines. 



Family PLOTOSID.K. Sea Catfishes. 



Plotus anguillaris (Bloch.). 



(]olor dral)-gi'av; three longitudinal white stripes on each side from 

 tip of head to tip of tail; fins all washed with slate-gray, darker at 

 extremities; chin, belly, and threat yelhnvish cream. Xos. -'(iSS, 2446, 

 2G77, 2655; length, KiO to 11»5 millimeters. 



This species is regarded as a good fish, but owing to the stinging 

 wounds infiicted by its spines and because of its small size, it is not 

 often seen in the market. It is also common throughout the Philipp 



'Atl. Ichth. (1862), 2, pi. XIV. 



Dines 



