108(a). AGONID^ BRACHYOPSIS. 72? 



plates reaching- head; pectorals reaching the eleventh plate; ventrals 



extending beyond front of anal in c? , much shorter in 9 ; the membrane 



between the rays very broad; anal papilla small. Head 4^; depth 8. 



D. IX-7; A. 11; V. I, 2; P. 14 ; C. 10; Lat. 1. 35. L. 8 inches. Coast 



of California; abundant in deep water. 



(Lockingtou, Proc. U. S. Nat. Mus. iii, 60, 1880 (May 6): Agonus (Brachijopaia) bar' 

 kaiii Steiiul. Iclitb. Beitriige, ix, 253, 1880 (July If)).) 



1114. B. xyosternus J. &. G. 



Light olive brown, tiuely reticulated with darker, pale below; mandi- 

 ble, and sides of head below eye bright silvery; pectoral blackish, with 

 a large light blotch at base below and a broad pale tip; caudal entirely 

 black; dorsal nearly i^lain; ventrals plain; anal white anteriorly, ab- 

 ruptly black behind. Form of 7>. verrucosus, but rather stouter and 

 less depressed; breast covered with minute prickles; plates of body 

 with spines as in B. verrucosus, but Avithout smaller prickles ; ventral 

 fins short, reaching, even in the male, little more than half way to anal; 

 the connecting membrane of the rays very narrow; maxillary barbel 

 loug, three-fourths the diameter of the eye; mandible very deep, more 

 than one third as deep as long; upper lateral series of i)lates obsolete 

 from front of lirst dorsal forward. Head 4|; depth 7. D. VI-0; A. 8; 

 V. I, 2 ; P. 17 ; Lat. 1. 30. L. 5^ inches. About Monterey and Sau 

 Francisco; common about Santa Cruz. 



(Jordan & Gilbert, Proc. U. S. Nat. Mus. iii, 1.52, 1880 (July 2): Agoniis (Brachyopsis) 

 annw Stcindacbuer, Icbtb. Beitriige ix, 254, 1880 (July 15).) 



1115. B. (?) dccagonilis (Blocb & Scbneider) J. & G. 



Yellowish brown, marbled with darker. Body elongate, compressed; 



head depressed ; jaws equal; a pair of spines above the snout, a second 



above the orbits, a third on the nape, the latter the largest; barbels 



very short and thick; scales with very prominent spines; six series of 



scales between the ventral fins and the \ent ; four between the vent 



and the anal fin; pectoral tins much longer than head, one-fourth total 



with caudal, I). Vl-7; A. 8; P. 14; Lat. 1. 41. Greenland to Norway. 



{Giinthcr.) 



{Af/onus decagonua Bl. & Sclin. 1801, 105: Agonus decagonus Giintbor, ii, 215: Agonus 

 dccagoiiuH Collet, Norges Fiske, 1875, 40: Archagonus dccagoHun (HW: Anpidophonta spi- 

 nosiHsinius Kroyer, Naturhist. Tidsskr. i, 250, 1844: Agonus «/;iH0si8.>((»n(« Giiutber, ii, 

 214: Leptagonua spinosmimua Gill, Proc, Acad. Nat. Sci. Phila. 167, 18G1.) 



