REVIEW OF POLYIPNUS AND ARGYROPELECUS — SCHULTZ 139 



440, station 81, latitude 18°29'45'' N., longitude 65°25'50" W., to 

 latitude 18°35'30'' K, longitude 65°23'54" W., depth 200 to 400 

 fathoms, February 26, 1933. 



Paratypes. — U.S.N.M. no. 102978, 4 specimens, lengths 26 to 

 39.5 mm, collected by the First Johnson-Smithsonian Deep-sea Ex- 

 pedition, 1933, tin tag no. 516, station 83, latitude 18°32'54'' N., longi- 

 tude 65°23'42" W., to latitude 18°32'15" N., longitude 65°18'45'' W., 

 depth 250 to 320 fathoms, February 26, 1933. U.S.N.M. no. 

 86131, length 20 mm, Grampus station 10482, Gulf of Mexico, depth 

 500 to meters, March 23, 1917 (this specimen is in such poor con- 

 dition that measurements and certain counts were not made). 



Description. — The description is based on the holotype and the 

 five paratypes. The counts and measurements given outside the 

 parentheses were taken from the holotype and those inside the paren- 





FiGUEB 44. — Polylpnua asteroides, new species: Holotype (U.S.N.M. no. 102979). 



theses, representing the minimum and maximum, were taken from 

 the paratypes. All measurements are expressed in hundredths of 

 the standard length. Standard lengths 39.5 (26 to 39.5 mm) ; the 

 number of dorsal soft rays are 14 (12 to 15) ; anal rays 16 (17) ; 

 pelvic fin rays 7 (7) ; pectoral fin rays 14 (14 to 15) ; gill rakers on 

 anterior margin of first gill arch 8+16 (7+14 to 16-8+15 to 16) ; 

 abdominal plates 10 (10). 



The lanterns occur as follows: Branchiostegals always 6; isthmus 

 always 6; abdominals always 10; anals 9 (9); preanals always 5; 

 supra-anals always 3 ; suprapectorals always 3 ; subcaudals always 4 ; 

 supra-abdominals always 3; preopercular, postorbital, preorbital, 

 subopercular, and lateral organs always 1 each. Length of head 

 35.5 (34.2 to 35.5) ; length of snout 8.9 (8.7 to 9.3) ; width of bony 



