290 APPENDIX. 



Genus Lagenorhynchus, Gray. 



Lagenorhynchus. Gray, Zoijl. E. and T., 1846, p. 34; 1850, p. 97. 



Section Medra, Gray. 

 Electra, Gray, 18G6, p. 268; 1871, p. 76. 



Lagenorhynchus electra. 



L. electra, Gray (1846), 18G6, p. 268. 



Electra oblttsa, Gray, 1868, p. 7, pi. 13; 1871, p. 76. 



Habitat ? 



Skull, 17.5 inches; beak, 9.75 inches; width at notch, 5.5 inches. Teeth, ||-, four in an inch. 

 Skull only, B. M. 



Lagenorhynchus asia. 



L. asia, Gray, 1866, p. 269. 



Electra asia. Gray, 1868, p. 7, pi. 14; 1871, p. 76. 



Habitat ? 



Skull, 16.75 inches; beak, 9 inches; width at notch, 4.75 inches. Teeth, |-|. Skull only, 

 B. M. 



Lagenorhynchus clanculus. 



L. clanculus. Gray, 1866, p. 271. 



Electra clancula. Gray, 1868, p. 7, pi. 35; 1871, p. 77. 



South Pacific, New Zealand. 



Skull, 14.5 inches; beak, 7.25 inches; width at notch, 4.75 inches. Teeth, ||. Skeleton and 

 skulls, B. M. 



Lagenorhynchus thicolea. 



L. thicolea. Gray, 1866, p. 271. 



Electra thicolea, Gray, 1868, p. 7, pi. 36; 1871, p. 77. 



West coast of North America. 



Skull, 14.5 inches; beak, 8.33 inches; width at notch, 3.9 inches. Teeth, f|? Skull only, 

 B. M. 



Compare Clijmenia crotaphisca, Cope. This is very likely to be one of the species described 

 from drawings by Peale. 



Section Leucopleurus, Gray. 

 Leucopleurus, Gray, P. Z. S. 1866, p. 216; 1868, p. 7; 1871, p. 78. 



Lagenorhynchus obliquidens. Plate xix, fig. 2. 



L. obliquidens, Gill, Proc. Phil. Acad. 1865, p. 177. 



Delphinus obliquidens. Cope, -Proc. Phil. Acad. 1869, p. 21; Gray, 1871, p. 69. 



Striped or Common Porpoise of Scammon. 



California. 



Not the "Bottle-nosed Grampus" of Scammon, as supposed by Cope, loc. cit. 



I have been able to identify this species by means of i^hotographs of Professor Gill's typical 

 specimen, which were kindly sent me by Professor Baird. It differs, however, in some particulars 

 from those I have examined. The skull is a little larger and longer, the pterygoids are less 

 pointed, the temporal fossa smaller, and the edges of the triangle are higher and more extended 



