28o PATAGONIAN EXPEDITIONS: ZOOLOGY. 



II. MENIDIA Bonaparte. 



Menidia Bonaparte, Fauna Italica 1836 (inenidid). 



? ChiyosfoDia Swainson, Fishes 1839, 243 {Jmniboldtiaiium) . 



Argyrea Dekay, New York Fauna, Fishes, 141, 1842 {iiofafd). 



Atheriiwides Bleeker, Verhand., Batav. Genootsch. Japan, XX, 40, 1853 



[vonierind). 

 '^ AtJierinichthys Bleeker, 1. c, 40 [Juunboldtiannni). 

 } HeteFoguaf/i?ts Girard, Proc. Ac. Nat. Sci. Phila., 1854, 198 {hum- 



boldtiamim). 

 } Let/iesfole]ord2in &Evermann, Bull. U. S. Nat. Mus. 47, 792, 1896 [estor). 

 Eslopsarum Jordan & Evermann, Check List Fishes, 330, 1896 [Jordaiii). 

 If only the long jawed forms of Chirostoma of Mexico were consid- 

 ered, they could readily be generically distinguished from Menidia. But 

 Meek has shown that while some species have a projecting lower jaw, 

 others have the jaws equal and still others have the upper jaw projecting. 

 These, according to Meek, intergrade to such an extent that no generic 

 dividing line can be drawn between Mexican species. Inasmuch as the 

 short jawed forms appear to be true Meuidias it is a question whether the 

 genus Chirostoma should not be united with Menidia, 



Smitt and Fowler have made out that Menidia laticlava is synonymous 

 with A. regiiis. Steindachner on the other hand found that they are 

 generically distinct. 



a. Head 3.66-4.5 in the length; depth 4-4.2 ; D. vi-viiii-i, 10; A. i, 13-14 ; Lat. line 75-80. 



21. manleana. 



aa. Head 5.5-6; depth 6.6-7; D. viii, 10; A. i, 18 ; Lat. line 86. 22. laticlava. 



aaa} Head 5.5 ; depth 5.5 ; D. vii, 9 ; A. i, 16 ; Lat. line 68-70 ; eye a little more than 4.4 in 



head. 23. hatcheri sp. nov. 



aaaa. Head 5 ; depth 8.5 ; D. vi-viii, 10; A. i, i8-i, 20; Lat. line 100 ; eye 3-5 in head, a 



conspicuous silvery lateral band ; each scale of the back with one or more dots ; origin 



of spinous dorsal over tips of ventrals. patagoniensis sp. nov. 



21. Menidia mauleana (Steindachner). 



Chirostoma maiileannm Steindachner, Ann. Naturh. Hofmus. V, II, 1896, 

 213 (Pichi Laguna, a branch of Lake Llanquihue) ; id., Zool. Jahrb. 

 1898, Suppl. IV, 313. 

 This species is known only from the types. 



^'Hatcher collected three small specimens, probably at Sandy Point (Punta Arenas), Straits of 

 Magellan. 



