56 PROCEEDINGS OF THE ACADEMY OF [1885. 



b. Teeth on palatines numerous, subequal, none of them much 

 enlarged ; two canine teeth on each side on vomer, the 

 inner ones usually about \ length of outer ones. 



Margaritatus. 'I. 



bb. Teeth on palatines unequal, few ; one to three on each side 

 enlarged and canine-like ; one canine tooth on each side 

 on vomer. Porosissimus. 8. 



6. Porichthys porosus. 



Batrachus porosus Cuvier & Valenciennes, Hist. Nat. Poiss., xii, 1837, 

 506 (Valparaiso); Gay, "Hist. Chili Zool., ii, 1844-54, 296 (Chili)." 



Porichthys porosus Gi'mther, Cat. Fish. Brit. Mus., iii, 1861, 177 (Chili); 

 Jordan, Proc. U. S. Nat. Mus., 1884, 41. 



Habitat. — Western Coast of South America, Chili. 

 We have not seen this species ; we only know it from the 

 accounts above cited. 



7. Porichthys margaritatus. Midshipman ; Singing-fish ; Cabezon ; Sapo. 



Batrachus margaritatus Richardson, " Voyage Sulphur, Fishes, 1844- 

 45, 67 (Pacific Coast of Central America)." 



Porichthys margaritatus Jordan & Gilbert, Proc. U. S. Nat. Mus., 1882, 

 368 (Cape San Lucas ; no description); Jordan & Gilbert, Proc. U. S. 

 Nat. Mus., 1882, 626 (Central America ; no description); Jordan & 

 Gilbert, Syn. Fish. N. A., 1883, 958 ; Jordan, Proc. Acad. Nat. Sci., 

 1883, 291 (Panama; Vancouver's Island); Jordan, Proc. U. S. Nat. 

 Mus., 1884, 41. 



PoricJithys notatus Girard, Proc. Acad. Nat. Sci., 1854, 141 ; Girard, U. 

 S. Pacific R. R. Survey, 1859, 134 (San Francisco); Goode, Bull. U. 

 S. Nat. Mus., 1879, 32 (Pacific Coast). 



Porichthys porosissimus Giinther, Cat. Fish. Brit. Mus., iii, 1861, 176 

 (in part; Vancouver Island); Gill, Proc. Acad. Nat. Sci. Phil., 1862, 

 280 (California); Jordan & Gilbert, Proc. U. S. Nat. Mus., 1880, 25 

 (San Diego; no description); Bean, Proc. U. S. Nat. Mus., 1880, 83 

 (West Coast ; San Diego ; Santa Barbara ; Monterey ; no description); 

 Jordan & Gilbert, Proc. U. S. Nat. Mus., 1880, 454 (Puget Sound ; 

 San Francisco ; Monterey Bay ; San Luis Obispo ; Santa Barbara ; 

 San Pedro ; San Diego ; no description) ; Rosa Smith, Ichth. San 

 Diego, 1880 (San Diego) ; Jordan & Jouy, Proc. U. S. Nat. Mus., 1881, 

 5 (Santa Barbara ; Monterey ; San Francisco ; Puget Sound ; no de- 

 scription); Jordan & Gilbert, Proc. U. S. Nat. Mus., 1881, 65 (West 

 Coast U. 8.; no description); Bean, Proc. U. S. Nat. Mus., 1881, 268 

 (Puget Sound); Jordan «fc Gilbert, Proc. U. S. Nat. Mus., 1881, 274 

 (Gulf of California ; no description); Jordan & Gilbert, Syn. Fish. N. 

 A., 1883, 751; (not Batrachus porosissimus Cuvier & Valenciennes). 



Habitat. — Western Coast of North America, from British Co- 

 lumbia to Panama. 



