147 
20 fathoms, bottom fine sand, Two were also procured from 
off Umhlanga River Mouth, 2} miles, by shrimp trawl, depth 
22-26 fathoms, bottom fine sand. 
Tetravoge gymnoderma, un. sp. 
(Plate XXXVII.) 
A second species of Tetraroge is readily distinguished from 
the preceding by its entire absence of scales. 
Di XV, 6-6, Shs Mlew sail ot 
Head 23 in body, equals length of pectoral which is slightly 
longer than caudai; depth of body little over 3 times in its 
length. 
Diameter of eye nearly 4 times in head, equals the inter- 
orbital space and also its distance from the snout. 
Bony ridges on snout and interorbital space not marked. 
Preorbital has a sharp spine with a smaller one at its base ; 
preopercular with 4 spines the last of which is the longest. 
Two blunt spines on upper part of operculum. No dermal 
appendage to lower jaw. 
Villiform teeth on jaws and vomer, none on palatine. 
The dorsal fin commences over the posterior margin of the 
eye. The first spine is less than half the length of the second 
and third which are the longest and are not separated from 
the succeeding by a larger space than that between each 
other. The last spine is longer than those immediately in 
front and nearly equals the length of the succeeding rays. 
The pectoral reaches to the 2nd spine of the anal and the 
ventral to the anus. 
No scales could be discerned in a piece of skin examined 
microscopically. There are 8 tubes of the lateral line. 
The colour in spirit is a dark brown over the head and 
anterior part of body, a brown band over the body at the 
beginning of the anal and one across the root of the tail. In 
most specimens these become, however, bleached out. The 
following colour notes were taken at time of capture : ‘‘ Brown- 
ish brick red in large patches, chiefly behind head and under 
anterior part of dorsal, in the middle of the body and on the 
caudal region ; in some specimens the colour appears in dots 
in these regions. All the fins are speckled with brown dots.” 
