ADDENDA TO MARSIFOBRANCHII, ELASMOBEANCHII, ETC. Gl 



long, but wide and rounded, its length from mouth greater than dis- 

 tance between nostrils, w r hich are nearer snout than angle of the mouth. 

 Eye moderate. Teeth f, their form as in E. lamia, the upper regularly 

 triangular, without notch, narrow in the young, the lower narrowly tri- 

 angular, erect, on a broad base, all the teeth distinctly and evenly ser- 

 rated. First dorsal beginning at a distance a little less than its own 

 base behind the pectorals, and ending at a point a little more than its 

 own base behind the ventrals. Height of first dorsal two-thirds the 

 depth of the body ; pectoral reaching past first dorsal. Second dorsal 

 very small, not one-sixth the height of the first, smaller than anal and 

 nearly opposite it. Tail 3 in length. Color plain light gray. Warm 

 seas north to San Diego Bay. 



"Our specimens differ from descriptions of E. lamia in not having 

 the first dorsal higher than the body, and inserted close behind the root 

 of the pectorals. In E. obscura and E. milberti the upper teeth are 

 deeply notched on the outer margin ". 



Page 24: After "Isogompliodon limbatus" add: 



"19 (&). HYPOPRION Muller & Henle. 



" (Hypoprionodon Gill.) 

 "(Muller & Henle, Plagiostomen, 1837,34: type Carcharias madoti Mutter & Henle.) 



"Characters essentially as in Eulamia,~bnt with the lower teeth entire, 

 the upper teeth coarsely serrated at base only, on one or both sides ; 

 lower teeth erect. (6/r<), below; xpiov, saw; the upper teeth being ser- 

 rated at base.) 

 "28. II. t>revia'tris Poey. 



"Snout obtuse ; teeth of the upper jaw with the base serrate on both 

 sides $ pectoral fins moderate. Bluish, fins without black spots. (Poey.) 

 West Indies ; occasional on our Gulf coast. 



"(Poey, Synopsis Pise. Cubeusium, 1868, 451: Carcliarias Irevirostris Giiuther, viii, 

 362.)" 



Pages 26, 29, 30, 31: Sphyrna zygccna, Lamna cornulica, Carcharodon 

 rondeleti, CetorrMnus maximus, and a species of Isurus (probably I. oxyr- 

 rhynchus) occur on the coast of California. 



Page 34 : For the key to genera substitute : 



"* Gill-openings six on eacL side HEXANCITUS, 31 (&.) 



'< * * Gill-openings seven on each side HEPTRANCHIAS, 32. 



