PROCEEDINGS OF THE NATIONAL MUSEUM. 187 



luasiiHU'li as the oblique cases take -id {TsoOiq^ -cdix;), tho proper form 

 of the tauiily name is Tenthirlida'. 



VIIT. 



The foregoing citations (which might have been mucli increased) are 

 sutticient to demonstrate that Teuthis sliould be used in i)iace of Acan- 

 tliurus and not of Sif/anus. From whatever point of view we look, we 

 are forced to this conclusion. 



1. The first species of Teuthis was an Acanthurid. 



L*. The genus Si<j((iii(s always appeared before Acanthurus, as well 

 in the list of new general and the table of contents, as in the descrip- 

 tive portion of Forskal's Avork. 



o. The genus Teuthis was first reduced by elimination to an Acan- 

 tliurid. 



4. The name Teuthis was first i)ositively restricted to Acanthurids. 



The conclusions thus formulated may be supplemented by a snmmary 

 of the synonymy and diagnosis of the genus Teuthis as now limited. 



Genus TEUTHIS. 



<^nepatus, Groxow, Zoopliylacium, p. 113, 1763. 



<^Teiithis, LiNNK, Systenia Natnnp, 12th e<l., I. p. 507, 176G. 



<^Avaiitlturus. Forskal, Descriptiones Auimaliiim, p. 25, 1775 (section of (lutfodonf 



Linn.). 

 <^II(trju(nix, FoKSTKU in Linna4 Syst. Nat., etl. Gmelin, I, p. 1269?, 1788. 

 <^Acavtl(iirHs, Bloch, Systenia Iclithyologia', ed. Schneider, p. 211, 1801. 

 xAspisurus, IjAckpkde, Hist. Niit. des Poissons, IV, p. 556, 1802. 

 <^Les Theiithies (TheutMs), (Juvikr, Tab. El. Hist. Nat., an. 6, p. 371 (1798). 

 <^Les Acanth ures Bi.. (Theutis, h.; Harpurus, Forsk.), ("rviER, Rcgne Animal, 



II. ].. 330, 1817. 

 <77(e)( ///,■«, Fleming, Phil. Zool., p. 396, 1822. 

 <C_Les Acatitlntriis. LACKvkDK et Uloch; Cuvier, Kogne Animal. 2d ed., II, p. 223, 



1829. 

 <^Teitih\s, UoNAPARTE, Giorn. Accad. di Scienze, LII (Saygio Distrib. .Metod. 



Animali Vertebr. a Sangae Freddo), p. 34, 1833. 

 ?f.J«fH//Nn(/s, PioxARARTE, Giorn. Accad. di Scienze, LII(Saggio Di.strib. Metod. 



Animali Vertebr. a Sangue Freddo), p. 34, 1833. (Subgenus of I'cnthin without 



diagnosis or type.) 

 <^Teuthis, Minding, Lehrb. Natnrg. Fische, p. Ill, 1832. 



y-Acantlmrtis, Swainson, Nat. Hist, and Class. Fishes, etc., II, pp. 255, 1839. 

 yTeidhys, Swainson, Nat. Hist, and Class. Fishes, etc., II, pp. 255, 1839. 

 XCte)>o(ton, Swainson, Nat. Hist, and Class. Fishes, etc., II, pp. 255, 1839. 

 =Acronuri(s, Ghonow, Cat. af fish collected and described, p. 142, 1854. 

 =Acanthunis j> 1, Gi'NTHER, Cat. Fish. Brit. Mus., Ill, pp. 325, 327, 1861. 

 =^Acyoinn-iis, Gunther, Cat. Fish. Brit. Mus., Ill, ]k 345 (young). 

 <^Bhomhoii(les, Bleeker. 

 <^Acanthuru8, Kner, Novara Fxped., Fische. p]). 210. 212 (c\c ludcs Scopas and 



Acronnrns). 

 =Acant]iunis A. Rhombolides, Day, Fishes of India, I, p. 202, 1876. 

 <^Acanfhurits, Gunther, Ann. and Mag. Nat. Hist., (4), VIII, p. 320, 1871 (includ- 

 ing Acronurus and Keris as pro))ab'lo young). 

 <C_Acai)thuru>i, GCntiier, Jouni. Mus. Godeffr., 1\, p. 106, 1875. 

 =Teuthis, Gill, Proc. U. S. Nat. Mus., VII, p. 278, 1884. 



