202 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 51. 



The spinules of the scales are in quincunx order, increasing in num- 

 ber with age, becoming densely crowded in the adult. The individual 

 spines vary in shape in different specimens, being either conic or 

 hastate. 



Inner edge of shoulder girdle almost completely naked. 



Pyloric caeca long and slender, nearly as long as postorbital length 

 of head, 24 and 29 in number in two Japanese specimens counted. 



Color dark brown; the entire abdominal region blackish; perito- 

 neum silvery, with brown spots. 



Table of meastiremcnts in hiindredihs of length to anus. 



Japan. 



Pliilippine Islands. 



Type. 



Paratypes. 



Albatross station 



Total length, mm 



Length to anus, mm 



Length, head 



Length, orbit 



Width, interorbital 



AVidth, suborbital 



Orbit to preopercle 



Length, snout 



Length, maxillary 



Length, barbel 



Depth, body 



Width, body 



Anus to anal 



Anus to ventral 



Ventral to istlunus 



Height, second dorsal spine. . 



Height, third dorsal ray 



Length, first dorsal base 



Interdorsal space 



Length, pectoral 



Length, first pectoral ray 



Length, second pectoral ray . . 

 Length, third pectoral ray. . . 



Length, outer ventral ray 



Length, second ventral ray. . . 



Scales, above lateral line 



Soft rays, first dorsal 



Ventral rays , 



Pectoral rays 



Serrations, dorsal spine 



ilzu 

 312+ 



69 



79 



20 



16 



11 



29 



23 



25 



17.5 



52 



38 



26 



24 



30 



62 



56 



19.5 



31 



41 

 5.5 



34 



40.5 



7 

 9 

 10-8 

 20 

 13 



4977 

 2 216 



66.2 



71 



21 



17 



n 



26.5 

 21 

 23 

 16 

 56 

 35 

 23 

 15 

 27 



66.5 

 61 

 20.5 

 26 

 37 

 4 



29 

 34 



4915 

 226 



49.7 



73 



20 



15 



10 



26 



22 



21 



11 



29 

 17 

 16 



4968 

 124 + 

 32.5 

 76 

 28.5 

 18.5 

 10 

 24 

 23.5 



12 

 44 



23.5 

 20 



18 



77 



74 



21 



14 



10 



29 



22 



25 



15 



60 



29 



17 



15 



30.5 



C9 



62 



23 



27.5 



4L5 



5201 

 249 

 55 

 76 

 22 

 17.5 

 11 



27.5 

 22.5 

 24 

 13 

 56 



5527 

 210 

 55 



17 



14 



28 



74 



67.5 



22.5 



34 



40 



28. LIONURUS CETONUROPSIS, new species. 



Plate 11, fig. 1. 



This interesting species is very close to a Philippine species, L. 

 parvipes (Smith and Radcliffe).^ These two species are apparently 

 related to Cetonurus, as their common characters indicate. Among 

 these may be mentioned the following: Body rather robust; snout very 

 high and broad, intermediate in form between typical Lionurus and 

 Cetonurus; suborbital ridge comparatively well marked; scales small, 

 hispid with suberect spinules, much as in Cetonurus; external groove 



1 Izu, Japan ; a specimen sent to Stanford University from the Imperial University ; No. 

 8002, Fish Collections, Stanford TTniversity (see synonomy). 

 "A pseudocaudal developed. 

 3 lYoc. U. S. Nat. Mus., vol. 43, 1912, p. 124, pi. 28, fig. 1. 



