TECHNICAL HISTORY SPECIES. 453 



as afibrcliug 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 SaUcyon 

 ricliardi (lege ricJiardsi) 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 i)aper Seliophoca 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 18G6 Dr. Theodore Gill t first made known the California 

 Sea-Elephant under the name Macrorhinus angustirostris. 



Gray, in 186G, 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. Lohodon 

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

 2. Leptonyx iveddelU {leopardinus^ Jameson) ; 3. Ommatophoca 

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

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

 6. Monaclms ti'opicalis ; 7. Callocephalus vituUnus (includes va- 

 riegata, Nilssouj Uttorea, Thienemann, canina, Pallas, communis, 

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

 rectly); 8. ^^Callocephalus? caspicus^^- 9. ^'Calloceplialusf dimid- 

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

 10. Pagomys fcetidus (includes hispida, annellata, discolor, etc., 

 and, incorrectly, '^fasciata, Shaw,".^ concolor,J}e Kay, ".^ eques- 

 tris, Pallas"); H. ^^ Pagomys f larglia^^ {= fcetida; includes 

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

 gopliilus grcenlandicus (includes oceanica, Lepech., semilunaris, 

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

 ricliardsi {grcenlandica, Middendorff = mtulina) ; 14. Plioca har- 

 bata ileporinus, Lepech., etc.); 15. Raliclioerus grypus (includes 

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

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

 phantina (includes leonina, Linne, prohoscidea, Nilsson, ansoni, 

 Desm. , ptatagonica. Gray, duhia, Fisch.); 17. Cystophora cristata 

 (includes cuciillata, Bodd., mitrata, Milbert, MS., horealis, Mis- 

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

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



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



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



