456 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



vol. 48. 



anal, about 76; scales, 63; head, 0.26; depth, 0.39; eye, 0.07; snout, 

 0.07; maxillary, 0.07; dorsal with 9 spots, anal with 7, with corre- 

 sponding bars at bases of dorsal and anal; body spotted elsewhere. 

 Only these three specimens known. 



PSETTINA, new genus. 



A new generic name is here proposed for the species described as 

 Engyprosopon iijimae, because the genus Engyprosopon, being char- 

 acterized by a wide interorbital and two rows of teeth in the jaws, 

 certainly does not include that species. The genus is closely related 

 to Arnoglossus, differing from it in having ctenoid rather than cycloid, 

 caducous scales ; and in having a smaller mouth. Psettina differs from 

 Engyprosopon, Platophrys, and related genera in the narrow inter- 

 orbital, alike in both sexes; and in the uniserial teeth. It resembles 

 Engyophrys from the Pacific coast of Colombia, South America, dif- 

 fering from that genus in having teeth on both sides of the jaws and 

 in lacking the peculiar interorbital spine. The Australian genus 

 LopTionectes differs chiefly in having the anterior dorsal rays much 

 produced. The new genus may be described as follows: 



Body sinistral, ovate, and compressed; mouth small but nearly sym- 

 metrical; teeth conic, slender, in a single series on both sides of jaws, 

 none on vomer or palatines; head without spines, alike in both 

 sexes, the interorbital a narrow ridge; ventrals very unsymmetrical; 

 origin of dorsal low on snout; rays of dorsal and anal moderate, the 

 fins extended to, but free from caudal; pectorals not filamentous; 

 anal spine absent, pubic spine sharp, triangular; scales rather large, 

 ctenoid on the eyed side, cycloid on the blind side; gill-rakers little 

 developed; anus partly on blind side. No lateral line on blind side. 



Type of the genus. — Engyprosopon iijimae Jordan and Starks. 



PSETTINA IIJIMAE (Jordan and Starks). 



Engyprosopon iijimae Jordan and Starks, Bull. TJ. S. Fish Coram., vol. 22, 1902 

 (1904), p. 626, pi. 8, fig. 1. Suruga Bay. 



One specimen from Albatross station 5074, Suruga Gulf; five speci- 

 mens from Albatross station 4946, off the south coast of Kiusiu. 



Table of measurements in hundredths of length to base of caudal. 



Albatross station 



Length to base of caudal, mm 



Dorsal rays 



Anal rays 



Pores 



Length head 



Depth body 



Diameter upper eye 



Snout from upper orbit 



Maxillary, eyed side 



Pectoral, eyed side 



Pectoral, blind side 



Pectoral rays, eyed side 



Pectoral rays, blind side 



Gill-rakers 



5074 



4946 



4946 



4946 



4946 



4946 



79 



97 



92 



91.5 



72 



69 



90 



89 



95 



92 



92 



87 



73 



68 



73 



73 



72 



68 



46 



48 



52 



55 



54 



53 



25 



25 



26 



25.5 



27 



25 



45 



46 



39 



40 



40 



41 



8 



8 



8 



8 



8 



8 



7.5 



8 



8 



8 



7 



7.5 



7 



8.5 



9 



9 



9 



9.5 



15 



17 



14 



16 



16 



17 



10 



11.5 



10 



10 



9.5 



10 



10 



11 



10 



11 



10 



9 



9 



9 



9 



10 



8 



8 



7 



6 



7 



7 



7 



8 



