30 FOSSIL FISHES OF LOMPOC 



Family 

 14. Lompoquia retropes Jordan and Gilbert. 



(Plate XIX.) 



Only the original type yet found. The body is largely covered with 

 small, thin scales, smaller below. Vertebrae 14 + 10, as in CYNOSCION, 

 its nearest living relative. 



Lompochites Jordan, new genus. 

 (Type: LOMPOCHITES HOPKINSI Jordan.) 



A long and slender fish, apparently belonging to the SCI^NID^:, but 

 quite as likely a CARANGOID. Head about 4 in length, the depth 4 1 / ; 

 mouth rather large, the teeth unknown. Vertebrae 14+10 = 24, little 

 constricted and with a broad ridge between two grooves. Neurals and 

 hasmals slender; interneurals slender and sharp, one for each neural 

 anteriorly, two between each pair posteriorly, these shorter and more 

 oblique, interhsemals stronger, forked, one for each pair of hsemals. 



Dorsal fins separated; the rays about XII, 20, the first short, the 

 second long and low. Anal apparently II, 18; ventrals inserted well be- 

 hind pectoral, much as in LOMPOQUIA. Caudal lost; no scales preserved. 



15. Lompochites hopkinsi Jordan, new species. 



Type No. 101, a shadowy impression of a large fish, complete but 

 very faint, ten inches long to base of caudal. A long, slender fish, the 

 head 4% in length ; depth 4% ; the head rather long and low, the mouth 

 apparently rather large, the maxillary perhaps reaching front of eye; 

 bones of head obscure, except that one gill arch is uncovered showing the 

 prints of its fringes ; vertebras longer than deep, 10 -j- 14, little con- 

 stricted; with a broad rounded median ridge between two grooves, not 

 showing the two narrow ridges and three grooves so evident in the type 

 of LOMPOQUIA RETROPES. 



Neural and haemal spines slender, even ; ribs evident ; dorsal appar- 

 ently divided, the first dorsal short, of 10 to 12 slender spines ; soft (dorsal 

 long and low, of 15 to 20 slender rays; first dorsal inserted behind 

 ventrals over the fifth vertebra, its interneurals springing from the third ; 

 anal apparently with two small spines and about 18 rays; caudal lost; 



