HALICYON—HALMASELUS. 307 
Halicyon Gray, 1864. Ferz, Pinnipedia, Phocid:e. 
Proc. Zool. Soe. London, 1864, 28-31, figs. of skull in text. 
Type: Halicyon richardii * Gray, from Frazer River and Vancouver Island, British 
Columbia. 
Halicyon: &À:0s, of the sea; «ocv, dog—i. e., ‘a sea-dog.' 
Halipaedisca GisrEL, 1848. Sirenia, Trichechid:e. 
Naturgesch. Tierreichs f. hóhere Schulen, 85, 1848. 
New name for Manatus Brünnich, 1772. Type, Manatus americanus, from the east 
coast of tropical America. 
Halipaedisca: &A1os, of the sea; za:0í6i, maiden—i. e., a mermaid. 
Haliphilus Gray, 1866. Fer:, Pinnipedia, Phocid:e. 
Ann. & Mag. Nat. Hist., 3d ser., XVII, 446, June, 1866. 
Type: Halicherus antarcticus Peale, from the Antarctic Ocean [possibly from the 
coast of California or Oregon ]. 
Haiiphilus: &Az20s, of the sea; Pidos, loving—in allusion to its habitat. 
Halitherium 1 Kaup, 1838. Sirenia, Halitheriide. 
[ Halytherium Kaur, Neues Jahrb. Mineralogie, 1838, 319, Taf. II, fig. D, 1, 2.] 
Neues Jahrbuch Mineralogie, 1838, 536. 
Type: Halytherium dubium Kaup, from Flonheim, Rhein-Hessen, Germany. 
Extinct. Based on ‘‘einen schon erhaltenen unteren vorletzten Backenzahn.’’ 
Halitherium: Atos, of the sea; 67píov, wild beast—i. e., a ‘sea beast.’ 
Hallomys JENTINK, 1879. Glires, Muridee, Cricetinze. 
Notes Leyden Museum, I, Note xxvu, 107-109, Mar., 1879. 
Type: Hallomys audeberti Jentink, from Maisine and Savary, northeastern Mada- 
gascar. 
Hallomys: &AAogat, to leap—in allusion to the supposed habit of leaping indi- 
cated by the long feet. 
Halmadromus AmEGHINO,,1891. Marsupialia, Epanorthide. 
Nuevos Restos Mamif. Fós. Patagonia Austral, p. 20, Aug., 1891; Revista Argen- 
tina Hist. Nat., I, entr. 5a, 306, Oct. 1, 1891. 
Type: Halmadromus vagus Ameghino, from the Lower Eocene of southern Pata- 
gonia. 
Extinct. 
Halmadromus: Ama, spring, leap; 6e0/0s, running. 
Halmarhiphus AwEcGniNo, 1891. Marsupialia, Garzonid:e. 
Nuevos Restos Mamíf. Fós. Patagonia Austral, p. 22, Aug., 1891; Revista Argen- 
tina Hist. Nat., I, entr. 5a, 308, Oct. 1, 1891. 
Species: Halmarhiphus didelpoides Ameghino, and H. nanus Ameghino, from the 
Lower Eocene of southern Patagonia. 
Extinct. 
Halmarhiphus: &Aua, spring, leap; 9197, throw (from oízrc, to throw.) 
Halmaselus AwEGuiNo, 1891. Marsupialia, Epanorthidee. 
Nuevos Restos Mamif. Fós. Patagonia Austral, p. 20, Aug., 1891; Revista Argen- 
tina Hist. Nat., I, entr. 5a, 306, Oct. 1, 1891. 
Type: Halmaselus valens Ameghino, from the Lower Eocene of southern Patagonia. 
Extinct. 


species having been named in honor of Captain Richards, Hydrographer to the 
Admiralty. (ScrATER, Proc. Zool. Soc. London, 1873, 556 footnote. ) 
TSpelled Halytherium in the first description, but this form is evidently a misprint. 
