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 

 ricJiardi (lege ricliardsi) based on a skeleton from Frazer's Kiver 

 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 Hclioplioca atlantica is referred to 

 Monaclms albiventer; and he enumerates fifteen species which 

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

 nal characters. 



In 1866 Dr. Theodore Gill t first made known the California 

 Sea-Elephant under the name Macrorliinus angustirostris. 



Gray, in I860, 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 

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

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

 rossi ; 4. Stenorliynclms leptonyx; 5. Monaclms albiventer (in- 

 cludes bicolor, Shaw, leucogaster, Peron, atlantica. Gray, etc.) ; 

 6. Monaclms fropicalis ; 7. Calloceplialus vitulinus (includes va- 

 riegatttj Nilsson, littorea, Thienemauu, qanina, Pallas, communis, 

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

 rectly); 8. " Calloceplialus f caspicus"; 9. " Calloceplialus? dimid- 

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

 10. Pagomys fcetidus (includes Mspida, annellata, discolor, etc., 'I 

 and, incorrectly, "fasciata, Shaw," ? concolor, De Kay, " f cques- 

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

 cliorisi and tigrina, Lesson, and nummularis, Tenim.); 12. Pa- 

 gopliilns groenlandicus (includes oceanica, Lepech., semilunaris, 

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

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

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

 haliclicerus, Thienem., gnseiiSj Nilsson, etc., and incorrectly his- 

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

 pliantina (includes leonina, Linne, probostidea, Nilsson, ansoni, 

 Desin., patagonica, Gray, dubia, Fisch.); 17. Cystopbora cristata 

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

 sou, Icucopla, Thieuem., etc.); 18. Cystopliora antillarum; 19. 

 Halicyon californica (p. 367, n. sp. ; nominal). 



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



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



j 



