TECHNICAL HISTORY SPECIES. 453 



as affording the first detailed description of an authentic speci- 

 men of the Baikal Seal. 



In 1864, Dr. Gray * described as new a species of Seal from 

 the west coast of North America, under the name Halicyon 

 richardi (lege richardsi) based on a skeleton from Frazer's Eiver 

 and a skull from Vancouver's Island. He was so impressed 

 with its distinctness that he created for it the new genus Hali- 

 cyon. In the same paper Heliophoca atlantica is referred to 

 Monachus albiventer; and he enumerates fifteen species which 

 he claims are fully established on osteological as well as exter- 

 nal characters. 



In 1866 Dr. Theodore Gillt first made known the California 

 Sea-Elephant under the name Macrorhinus angustirostris. 



Gray, in 1866, in his " Catalogue of Seals and Whales in the 

 British Museum" (pp. 8-35, 38-43, 367, 368), enumerated nine- 

 teen species, placed in fourteen genera, as follows : 1. Lobodon 

 carcinophaga (includes serridens, Owen, and antarctica, Peale) ; 

 2. Leptonyx weddelli (leopardinus, Jameson) ; 3. Ommatophoca 

 rossi ; 4. Stenorhynchus leptonyx; 5. Monachus albiventer (in- 

 cludes bicolor, Shaw, leucogaster, Pe"ron, atlantica, Gray, etc.) ; 

 6. Monachus tropicalis ; 1. Callocephalus vitulinus (includes va- 

 riegata, Mlsson, littorea, Thienemann, canina, Pallas, communis, 

 vars. octonotata and undulata, Kutorga, etc., the last incor- 

 rectly); 8. " Callocephalus f caspicus"; 9. " Callocephalus f dimid- 

 iatus" (ex Schlegel MS.; locality " Norway " not determinable); ; 

 10. Pagomys foetidus (includes hispida, annellata, discolor, etc., 'j 

 and, incorrectly, "fasciata, Shaw," f concolor, De Kay, " f cgues- 

 trisj Pallas"); 11. "Pagomys? largha" (= fcetida; includes 

 cJiorisi and tigrina. Lesson, and nummularis, Temm.); 12. Pa- 

 gopliilus grcenlandicus (includes oceanica, Lepech., semilunaris, 

 Bodd., dorsata, Pallas, annellata, Gaimard, etc.) ; 13. Halicyon 

 richardsi (grcenlandica, Middendorff = vitulina) ; 14. Phoca bar- 

 bata (leporinus, Lepech., etc.); 15. Halichoerus grypus (includes 

 halichwrus, Thienem., griseus, Nilsson, etc., and incorrectly his- 

 pida, Schreber, and scopulicola, Thienem.); 16. Norunga ele- 

 phantina (includes leonina, Linne", proboscidca, Nilsson, ansoni, 

 Desm., patagonica, Gray, dubia, Fisch.); 17. Cystophora cristata, 

 (includes cucullata, Bodd., mitrata, Milbert, MS., borealis, Nils- 

 son, leucopla, Thienem., etc.); 18. Cystophora antillarum; 19. 

 Halicyon calif ornica (p. 367, n. sp. ; nominal). 



* Proc. Zool. Soc. Lond., 1861, p. 28. 



tProc. Chicago Academy of Sciences, vol. i, p. 33. 



