of the Bay of Bengal ce. 389 
A single specimen, 7} inches long, from the Andaman Sea, 
east of Port Blair, 271 fathoms, has the abdominal region 
equal to the length of the head and the ventral filaments half 
as long as the head. 
SACCOGASTER, gen. nov. 
Allied to Catelaz. 
Body compressed, little elongate, partly invested by minute, 
membranous, non-imbricating scales. Abdomen large. Head 
with loose sealeless skin. Snout a little inflated, not pro- 
jecting beyond the equal jaws. Bones of the head firm, 
without spines, the mucous channels well developed but with- 
out conspicuous external openings. Opercles unarmed. No 
barbels. Hyes small. Mouth wide. Bands of villiform 
teeth in jaws, palatines, and vomer, and an inner row of 
enlarged teeth in the mandible. Vertical fins confluent with 
the caudal. Ventrals simple filaments. Four gills; eight 
branchiostegals ; no pseudobranchie. No pyloric ceca. 
Saccogaster maculatus, sp. nov. 
bao cirero2. Al cite, oo. Pr ig.. Veli: ©2122? 
Head with aspect of Collichthys ; body deep, with an inflated 
abdomen abruptly constricted at its junction with the low, 
compressed, tapering tail. Length ot head 33 in the total, 
three fourths as broad as high, abruptly convex behind the 
broad depressed interorbital region, covered with a loose 
scaleless skin. Snout half as long again as the diminutive 
eye, broad, depressed, inflated laterally, but not overhanging 
the jaws. Operculum with a bony stay, not ending in a 
distinct spine above. Preopercular border full, sloping back- 
wards, rounded and smooth. Preorbital broad. ‘The eyes, 
which are deep-set and covered with loose tough skin, are 
placed far forward, and by the flattening of the fore part of 
the head occupy an almost superior position, but with a lateral 
visual axis; their long diameter is rather less than one ninth 
the length of the head and less than their distance apart. 
Nostrils inconspicuous. Cleft of mouth wide and oblique ; 
the maxilla is half as long as the head, and has a much 
dilated posterior extremity ; ramiof the lower jaw broad, with 
sharp lower edge. Villitorm teeth in the jaws, palatines, and 
vomer, and an inner close-set row of uniformly enlarged teeth 
in the mandible. ‘longue large, thick, and fleshy. Gull- 
openings very wide, the membranes united at their extreme 
anterior limit; gill-lamine narrow; gill-rakers almost tuber- 
