276 U.S. NATIONAL MUSEUM BULLETIN 2 02 Vol. 2 



6 or 7 + 1 + 20 to 24; first 2 or 3 dorsal rays long and 



filamentous on males, but about the same length as 



other rays on females; 4 or 5 small scales around lower 



rear edge of eye. 



14a. Dorsal rays III-44 to 46; scales in front of anus on 



midventral part of abdomen crowded or notably 



smaller than those laterally. 



Trichonotops,^ new genus 



14b. Dorsal rays VI or VII, 40 to 43. (The differences between 



the spines and soft rays can be detected only by use 



of a microscope and transmitted light) ; scales not 



crowded or smaller on ventral part of abdomen in 



front of anus Trichonotus ^* Bloch and Schneider 



36. Two dorsal fins, first few rays detached from the posterior rays; pelvic rays 



1,5 (Percophididae). 



15a. Opercle with a single spine (sometimes rather weak and not projecting, 



represented by a ridge) near its dorsal edge; this spine may be 



covered with scales. 



16a. Lower jaw projecting, notably longer than upper jaw, body greatly 



elongate, greatest depth about 10 times or more in standard 



length; head greatly depressed; no cirri on inner edge of pre- 



opercle; dorsal rays VIII or IX-31; anal about i,38 to i,40; 



pectoral about 17 or 18; branched caudal 6 + 5. (Tropical Atlantic.) 



Percophis ^^ Quoy and Gaimard 

 166. Lower jaw a httle shorter than upper jaw or equal to it; greatest 

 depth 8 or fewer times in standard length. 

 17a. Dorsal rays IV to VI-20 to 23; branched caudal 4 + 3 or 4. 



ISo. Inner edge of preopercle with a row of cirri that interdigitate 

 with gill rakers on first gill arch; dorsal rays VI-21 to 23; 

 anal 27; scales 34 to 3Q, with 2 scales above and 3 below 

 lateral line. (Indo-Pacific.) 



Pteropsaron *<> Jordan and Snyder 

 186. Inner edge of preopercle without cirri; anal rays about 24. 

 19a. Cleft of mouth almost horizontal, very slightly oblique; 

 dorsal rays IV-21; scales 32, with 2 above lateral line and 

 3 below to anal origin. (Indo-Pacific.) 



Osopsaron *^ Jordan and Starks 



M Type species, Taeniolabrus marlepi Smith, Trans. Roy. Soc. South Africa, vol. 24, pt. 1, p. 4; pis. 1, 2, 

 1936 (type locality, Durban, South Africa). 



My diagnosis of this new genus is based on Smith's description of T. marleyi, and on a specimen Ooancd 

 by Dr. R. R. Harry), SNHM 31451, from Durban Bay, Natal, South Africa. 



" Trichonotus Bloch and Schneider, Systema ichthyologiae . . . , p. 179. pi. 39, 1801 (typo species, Tri- 

 chonotus setiger Bloch and Schneider). 



Taeniolabrus Stelndachner, Sitzb. Akad. Wiss. Wlen, vol. 55, No. 1, p. 713, pi. 3, fig. 5, 1867 (type species, 

 Taeniolabrus filamentosus Stelndachner). 



*' Percophis Quoy and Gaimard, Voyage autour du monde . . . sur . . . VUranie et la Physicienne, 

 Zoologie, p. 351, pi. 53, figs. 1. 2, 1824 (type species, Percophis brasiliensis Quoy and Gaimard). 



8» Pteropsaron Jordan and Snyder, Proc. U. S. Nat. Mus., vol. 24, No. 1263, p. 470, fig. 2, 1902 (type species, 

 Pteropsaron evolans Jordan and Snyder) .—Jordan and Starks, Bull. U. S. Fish Comm., vol. 22 (1902), p. 599, 

 fig., 1904 (Japan). 



" Osopsaron, Jordan and Starks, Bull. U. S. Fish Comm., vol. 22 (1902). p. COO, fig., 1904 (type species, 

 Pteropsaron verecundum Jordan and Snyder). 



Pteropsaron verecundum Jordan and Snyder, Proc. TJ. S. Nat. Mus., vol. 24, p. 472, 1902 (type locality, 

 Suruga Bay, Japan). 



