CLUPEID.E ELLIMMA 27 



teriorly ; preopercle strong, as high as the opercle, its upper limb vertical ; 

 branchiostegals apparently broad; no teeth are shown and no scales are 

 preserved. 



MEASUREMENTS 



Length to base of caudal . . . . . 96 mm. 



Depth midway 38 mm. 



Length of head . 37 mm. 



Length of longest rib . . . . . 28 mm. 



Length of caudal, lower lobe .... 28 mm. 



Diameter of eye ". 8 mm. 



ELLIMMICHTHYS Jordan, new genus. 



As compared with the type of the genus ELLIMMA, E. BRANNERI Jor- 

 dan, from the lower Eocene at Riacho Doce, Alagoas, Brazil, the Califor- 

 nia species has a much greater number of vertebrae (16+ 17 = 33 in E. 

 BRANNERI ), but is otherwise very similar, and it may probably be placed in 

 the same genus. The dorsal fin, small in E. BRANNERI, larger in E. RIA- 

 CENSIS, is very small in E. ELMODEN^E. All three of these species lack 

 the sharply elevated back of E. LONGICOSTATUM (Cope). This species, in 

 fact, cannot be retained in ELLIMMA and may be made the type of a 

 distinct genus, ELLIMMICHTHYS Jordan. It conies from the upper 

 Cretaceous near Itacaranha, Brazil. 



The type specimen of ELLIMMA ELMODEN^: is presented to Stanford 

 University by Mr. E. E. Hadley. 



23. Ellimma barbarae Jordan and Gilbert, new species. 



(Plate IX, fig. 3) 



Type a small fish, 3^ inches long (No. XXXII) from fine-grained 

 Miocene sand shales at Carpinteria, Santa Barbara County, loaned by Mr. 

 Martin, principal of the Carpinteria High School. 



Form of ELLIMMA ELMODEN^:: head nearly 4 in length, depth 2%, 

 eye 3 in head, half longer than snout. Dorsal rays about 12, five visible. 

 Anal rays 12 to 14; ventral serratures 11 or 12 + 8 or 10; dorsal scutes 

 mostly obliterated. Vertebrae 22 to 24 -f- 14 = 36 to 38. Body deep, 

 compressed, the ventral outline prominent; head rather short, depressed 

 above eye; mouth moderate, apparently oblique, the jaws subequal; no 

 trace of teeth ; eye rather small, but longer than the short snout ; opercle 

 higher than long, scarcely angled; preopercle striate; body cavity very 

 large, crossed by long, moderately curved ribs, each a little longer than 

 head; caudal region very short, little longer than head; ventral serrae 

 strong; a few traces of dorsal scutes; back feebly arched; vertebrae 

 rather weak, scarcely deeper than long, maintaining their strength well 

 backward. 



