NATURAL SCIENCES OF PHILADELPHIA. 228 



Hakpe diplot^ixia Gill. 

 Harpe diplotaenia Gill, Proc. Acad. Nat. Sci. Phila., 1863, p. 140. 

 Cossyphus diplotaenia Gthr., Cat. iv. 110. 

 Bab. Cape St. Lucas. 



Harpe pectoralis Gill. 

 Harpe pectoralis Gill, Proc. Acad. Nat. Sci. Phila,, 1863, p. 141. 

 Cossyphus pectoralis Gthr., Cat. iv. p. 110. 

 Hab. Cape St. Lucas. 



Subfamily JULIDINJE (Gthr.)* 



Genus JULIS (Cuv.) Giinther. 



JOLIS LUCASANA Gill. 



Julis lucasana Gill, Proc. Acad. Nat. Sci. Phila., 1862, p. 142. 

 " " Giinther, Cat. iv. p. 184. 



Hab. Cape St. Lucas. 



Genus CHCEROJULIS Gill. 



* Chcerojulis semicinctus Gill. 

 Synonymy. 

 Julis semicinctus Ayres, Proc. California Academy of Natural Sciences, pt. ii. 



p. 32. 

 Choerojulis sp. ? Gill, Proc. Academy of Natural Sciences of Philada., 1862. 

 Platyglossus semicinctus Giinther, Catalogue of the Fishes in the British 

 Museum, vol. iv. p. 161. 

 Sab. Lower California. 



In implying that it was possible that Dr. Ayres might have committed an 

 error in giving the number of dorsal spines of. this species, I have done him 

 injustice, since he assures me that he has found that number ; although the 

 dentition has not been noticed as to the presence of the angular tooth of the 

 upper jaw, it is doubtless present, and the species probably belong to Chozro- 

 julis. The species is unknown to me through specimens. 



Subfamily XYRICETEYINJE Gill. 

 This subfamily should, perhaps, be limited so as to retain only those types 

 which have the lateral line interrupted. It would then embrace the following 

 genera : 



I. Scales rather large, thirty or less along lateral line. 



A. Head with the upper edge trenchant. 



0. Dorsal spine nine, the first two remote from the others, 



on or close behind the occiput and forming a more 

 or less distinct portion. 



1. Cheeks with small scales Novacula. 



2. Cheeks nakedf Iniistius. 



(i. Dorsal spines nine, all connected in a fin whose 



origin is nearly above the bases of the pectorals. 



Cheek naked Xyrichthys. 



B. Head above blunt. 



1. Dorsal spines connected Novaculichthys. 



2. First two dorsal spines more or less detached Dimalacocentrus. 



II. Scales small (lateral line with about 80). Head blunt 



on its upper edge Cymolutes. 



* The Julis modestus Grd. of Upper California is the type of a new genus, which may be named 

 Oxyjulis. Girard was correct in giving nine dorsal spines ; in the one formerly noticed by me and 

 which I caused to be figured, there were, however, only eight. 



f Occasionally there are a few scales around the orbit. 



1863.] 



