84 CALIFORNIA ACADEMY OF SCIENCES. 



plate granular, the granulation not extending forward 

 to above middle of cheeks. Occipital process triangular, 

 about as long as broad, the median ridge not very 

 prominent. Middle of fontanel behind the eye, the 

 posterior portion separated by a bridge, not continued 

 backward as a groove; interorbital region with four 

 ridges. 



Eye small, 3 in snout, 10 in head, 3J in the interocu- 

 lar. 



Barbels villiform. Maxillary barbel reaching to or 

 beyond base of pectoral; postmental to gill-opening, 

 mental barbels much shorter. 



Mouth inferior, lower jaw included, lips thick; teeth 



villiform, the anterior ones in the jaws longer; ^ N. 



depth of the intermaxillery band 4 in its ^ ^ 

 width; palatine patches 1 diameter of the eye 7 ^ 

 apart, the width of the patches less than one *-<? 

 diameter of the eye. 



Gill-membranes meeting in an angle, forming a fold 

 across the isthmus. Gill-rakers 6+11. 



Pectoral pore none; vertical series of pores present. 



Distance of dorsal spine from the snout 2j-2J in the 

 length, the spine broken in the specimens. Space be- 

 tween dorsal and adipose fins 4-4f in the length. 

 Adipose fin adnate, as long as the anal fin. 



Ventrals 2J in the head. 



Pectoral spine serrated behind (broken). 



Head 3|-4; depth 5J-6; D. I, 7; A. 19-21. 



Two specimens .22 and .26 m. long. Para. Agassiz 

 and Bourget. 



55a. Tachisurus rugispinis phrygiatus, 



Arius phrygiatus Cuv. & Val. Hist. Nat. Poiss. xv, 79, 1840 (Cay- 

 enne); Giinther, Cat. Fish. Brit. Mus. v, 156, 1864 (copied). 



Caleichthys phrygiatus Jordan, Proc. U. S. Nat. Mus. 1886, 559 

 (name only). 



Tachimrus phrygiatus Eigenm. & Eigenm. Proc. Cal. Acad. 2d Ser. 

 vol. i, 1888, 145 (Maranhao). 



