PROCEEDINGS OF THE NATIOXAL MUSEUM. 181 



The first of these species is evidently the same as the second species 

 of Hepatus, while the second is the first species of Hepatus of Gronow's 

 system. Linn;cus did not know these species, as such, through autopsy, 

 and derived his knowledge of them almost entirely from Groiiow, 

 simply adding some synonyms, in several cases erroneously. 



I repeat that the genus Teuthis of Linnanis was purely the result of 

 misapprehension or ignorance; and the genus being misplaced in the 

 order Abdominales, its characters contrast with those of any genus of 

 that order, but not with those of species referred to the Thoracici, some 

 of whose representatives, retained in the genus Cha'todoti, have precisely 

 the same characters, and in fact are nearly related congeners of one of 

 the species of Teuthis. The clniracters selected for the generic diag- 

 nosis, too, are of tli& least value and not even apiilicable in all cases, 

 the only important characteristic being the dentition, and in the expres- 

 sion thereof Linn;eus was more successful than Gronow, although in 

 other respects much inferior. 



Although almost all of the Linnoean genera were composite and 

 many of them embraced representatives of a number of distinct fam- 

 ilies, the fact that the JSwedish naturalist referred two generic tyi)es to 

 Teuthis has appeared to some good ichthyologists a suflicient reason to 

 ignore the name for either. Thus both Kner and Klunzinger adopted 

 the names Amphacanthus and Acanthurus. 



Kner remarked : ' 



Der Name Teiilhis diirfte kauiii bereclitigt soiu, obigeu Gattnngsnamen wieder zii 

 vei'draugeu, da Liun6 iliu wobl fiii" t^iuige Arteu dieser, aber aucli der Gatt. Jcati- 

 ihiinis beuiitzte. 



Klunzinger observed :- 



Dar'Same Jmpliacanthiis ist vorzuzieheu, da Liune unter dem Naineu Tentliis sowohl 

 eineu . I )n2>h« can thus ids eiueu Acanthunis beschriebeu hat. 



111. 



In 1775 Forskal, in his "'Descriptiones Animalium [etc.] qua^ in itinere 

 . orientale observavit." introduced new generic or group names for species 

 severally congeneric with the species of Hepatus or Teuthis, in a some- 

 what informal manner, but which, nevertheless, admits of no doubt as 

 to his meaning and intent. The data maybe given in the order of the 

 volume. 



First, on the reverse of the false title page (ii, but not numbered) 

 succeeding the introduction and table of contents, is a list of "ISTova 

 Genera," among which four " Piscium" are named, viz : 



Salaria. (Gadus3.) 

 Scarus. (Scarus 11-18.) 

 Siganuis. (Scarns 9-10.) 

 Acantburus. (Chtetodon 88-89. ) •'• 



' The numbers after the genera refer not to the nuuiber of species in the respective 

 genera, but to the serial numbers of all the fishes described. 

 - Kner, Novara Exped. Fisohe, p. 20.5, 186;"). 

 'Verb. k. k. zool.-bot. Ges. Wien, XXI, p.T.Ol, 1871. 



