522 PROCEEDINGS OF THE NATIONAL MUSEUM vol.86 



there are no canine or fanglike teeth on the tongue, dentaries, or 

 palatines, the gill rakers are long and slender; the vent is in its normal 

 position before the anal fin, far behind the bases of the pelvics; there 

 are 12 rays in the dorsal, 21 in the anal, and 20 in the pectorals; the 

 scales are very minute; and the ventrals are inserted under the second 

 ray of the dorsal. Sudis ringens (according to Jordan and Gilbert, 

 1881a, p. 273) has the depth contained in the length 16.0 times, the 

 head 6.1 times, and the snout to the anal 1.25 times; the upper jaw 

 is contained in the head less than 2 times, the length of the caudal 

 peduncle 2.7 times; there are canine teeth on the dentaries and pala- 

 tines ; there are no teeth on the tongue ; the gill rakers are short, sharp, 

 spinelike; there are 11 rays in the dorsal, 26 in the anal; the scales are 

 very large. In Svdis coruscans (Jordan and Gilbert, 1881b, pp. 411- 

 412) the depth is contained in the length 13 times; teeth not fanglike; 

 the gill rakers are broader than they are long; the vent is slightly 

 behind the base of the ventral fins; dorsal rays 8, anal rays 31 ; pectoral 

 rays 9 ; scales small with those of the lateral line large, nonimbricated 

 and platelike ; the ventrals are inserted completely behind the base of 

 the dorsal. These differences, amon^ many others, show the present 

 species to be \videly different from these two. It appears to be more 

 similar to Lestidium (Bathysudis) speciosum, from which, however, 

 it can be told by the presence of scales, the more anterior insertion 

 of the ventral, and other characters (according to the description and 

 figure of Parr, 1928, pp. 42-43 and fig. 4) Sudis ringens has been 

 synonymized wuth Sudis rissoi kroyeri by Parr (1928). 

 Named in reference to the squamation. 



Genus LESTIDIUM Gilbert, 1905 



LESXmiUM (BATHYSUDIS) PARRI, new species 



Figure 64 



Types. — Holotype, a specimen 57 mm in length without caudal, 

 from station 118B, taken February 12, 1929, latitude 59°45' N., longi- 

 tude 147°00' W., U.S.N.M. no. 108140, and 3 paratypes from station 

 120, taken February 13, 1929, latitude 59°49' N., longitude 144°50' 

 W., in the IFC collection. 



Description. — (In tliis paragraph the measurements and counts are 

 given for the holotype followed by the range of the paratypes in 

 parentheses.) Dorsal ray 11 (11 to 13); anal rays 20 (20 to 22); 

 caudal rays 43 (41 to 45); pectoral rays 11 (11); pelvic rays 8 (8); 

 gill rakers on first arch 5 + 18 (5 + 17 to 5 + 18). Proportions of length 

 without caudal: Length of head 4.0 (3.8 to 3.9); snout to dorsal 1.8 

 (1.8); snout to adipose 1.2 (1.2); snout to pelvic 2.0 (1.8 to 2.0); 

 snout to anal 1.4 (1.4); greatest depth 8.1 (7.1 to 7.2); diameter of 

 eye 19.0 (14.3 to 18.0); length of snout 14.2 (14.3 to 16.7); length of 



