1897.] NATURAL SCIENCES OF PHILADELPHIA. 65 



at an angle of about 100° ; a carinated scute terminating in a small 

 sharp spine in front of dorsal ; vertebra? 45 (T. mystacoides). 



Ti'iohosoma porava (Bleeker). 



Thryssa porava Bleeker, Verh. Bat., XXII, Ich. Madura, p. 14, Dec, 1848. 

 Engratdis mystacoides, Giinther, Cat. Fishes, VII, 396, 1867. 



(It is unfortunate that there is another species of this genus 

 named purava). 



Two specimens, 4 inches long. 



Head 4 and 4|, depth 4, eye 4 and 41 ; scales 42 ; B. 9 or 10 ; 

 D. 13 ; A. 40 ; P. 12 and 13 ; V. 8 ; gill-rakers 13. 



Dorsal nearer caudal than snout, its last rays over origin of anal ; 

 pectorals reaching nearly to the tips of ventrals, which are small. 25 

 spiny scutes on abdomen, extending forward to the gill opening. 

 Snout very short, about f of eye, projecting but little beyond lower 

 jaw. Maxillary not quite reaching pectoral, pointed with teeth on 

 full length. Most anterior teeth of jaws strongly hooked backward, 

 others nearly straight but inclined slightly forward. Small or 

 minute teeth on palatines, pterygoids, gill-arches and hyal bones ; 

 two patches each on vomer and palatines, those of the vomer some- 

 what enlarged. Gill-rakers coarse, spiny, shorter than eye. 



Trichosoma adelse Rutter. New species. 



Eight specimens, 5 inches long ; No. 1,565, Leland Stanford Junior 

 University. 



Head 4 J, depth 3! to 4, eye 3f to 4 ; scales 40 ; B. 12 ; D. 11 to 

 12 ; A. 39 to 41 ; P. 14 ; V. 7 ; gill-rakers 20. 



Dorsal short, its depth twice length of base, the last four rays 

 especially weak and short, its origin very slightly nearer caudal than 

 snout. Origin of anal under last ray of dorsal, pectorals reaching 

 middle of ventrals. Twenty-five scutes on abdomen. Maxillary 

 pointed, extending beyond base of pectorals, with teeth on its full 

 length. Teeth in both jaws equal in size, those on the palatine 

 slightly enlarged, in two patches, but minute, on gill-arches, but none 

 on hyal bones, broad oval patches on palatines, present on pterygoids. 

 Snout very short, 5f of eye, projecting but little beyond lower jaw. 

 Gillrakers very thin and closely set, shorter than eye, edge rough. 

 Sides silvery, back flesh color (in alcohol), black punctulation on 

 scapular region. 



This species is most closely related to Trichosoma porava (Bleeker), 

 with which it is found. It differs in having fewer dorsal rays and 

 more gill-rakers, characters by which it differs from all other species 



