396 LABRICHTHYS AND PSEUDOLABRUS GILL. 



Bleeker has established the geu us Za&ric/i//!^8 for L. c^ano/ffnia, and distinguished 

 it from Pseudolabrus {niiiginosus) by the single series of teeth in the lower pharyn- 

 geal. L. celidota has two series; L. tetrica, L. rubi(jhi08a,a,nA L. luculenta have three. 

 All these series are very irregular and form rather a baud or a patch. 



In 18G3Dr. Bleeker aptly met this comment:* 



M. GUnther a raal compris uiou genre Labrichthijs, qui est tr^s-diflf^rent du genre 

 Pseudolabrus et qui s'eu distingue non seukmtnt par uu autre type du systeme deu- 

 taire pharyngien, mais aussi par un systeme d'ecaillure fort different de la tete 

 et des nageoires, par une construction diff^rente de la levre inferieure, etc. Si M. 

 Giiuther avait connu men espece type du geura Labikhthys {Labrichthys cyanotcenia) 

 il ne serait probablement pas tombe dans cette erreur. Cependaut j'ai nettemeut 

 precise les caracteres des deux genres, mais M. Giinther n'y a pas fait attention 

 puisqu'il dit tout simplemeut (Cat., p. 112): '• Bleeker has established the genus 

 Labrichthys for L. cyanotivnia, and distinguished it from Fseudolabrua by the single 

 series of teeth on the lower pharyngeal." 



As Dr. Bleeker claimed, it was not bis fault that the two genera were 

 confused and should continue to be so for nearly thirty years more. 



No more than Dr. Giinther in 1SG2 have 1 been able to examine a 

 specimen of the typical Labriehthys, but the description and figure of 

 Bleeker compared with specimens of Pseudolabrus plainly show how 

 diflerent the two are. Those differences, susceptible of clear definition, 

 are contrasted in the following table : 



III. 



LABRICHTHYS. 



PSEUDOLABRDS. 



Lateralis ramose on each scale. 



Lateralis mostly tubular on each scale. 



Froutal contour arched and elevated I Frontal contour uearly straight, and not 



above eyes. elevated above eyes. 



Forehead scaly. Forehead naked. 



Operculum and suboperrulum expanded Operculum and suboperculum not ex- 



backwaids. 

 Preoperculum scaly. 



pauded. 

 Preoperculum naked. 



Branchiostegites 5. Braucbiostegites 6. 



Dorsalis and analis with deep scaly Dorsalis and aualis without deep scaly 



sheaths. : sheaths. 



Ventralis with first ray elongate. Ventralis with second ray slightly loi)ge.st. 



Lips fimbriated;! lower especially de- Lips fimbriated; lower not developed in 



veloped in front. 

 Teeth. t 



front. 

 Teeth distinct, uniserial except for an in- 

 ner rudimentary row, generally with 

 posterior canines, t 



Hypopharyngeal linear, with the anterior Hypopharyugeal normally labroid with 

 shaft atrophied, and with uniserial j the anterior shaft well developed, and 

 teeth. ^ 1 with two or more rows of teeth. 



• Bleeker, Versl. en Med. K. Akad. Wet. (An sterdam), Afd. Nat., V. 15, p. 444; Ned 

 Tijd. voorDierkunde, v. 2., p. 6t), Idli.j. 



tAmbo labia in vela fimbriata ast indivisa producta. K. & S., Liv. 394. 



tin utraque maxilla lamina dentalis Scan ad instar, solum 4 dentibus caniuis. 

 partini sejnnctis, dentes augulares cauini supramasillares liberi. K. & S., liv, 

 394. 



^ Osse pharyugeali inferiore corpore gracili augulata dentibus conicis uniseriatis. 

 Bleeker, o. c, 154. 



