[89] REVIEW OF THE LABROID FISHES. 687 



to the Loro of Parra and to the Scarus obtusus of Poey. It is possible that 

 these specimens are not the young of the large- humped cwruleus, but 

 as no differences other than in the development of the hump and of the 

 lobes of the caudal are to be found we refer them without much hesi- 

 tation to S. cceruleus. The same opinion is expressed by Gimther, who 

 considers his chloris as probably the young of cceruleus. His chloris is 

 evidently our fish, though not the chloris of Bloch. 



There is some confusion in regard to the original Coryphcena ccerulea 

 of Bloch, which must be regarded as in part only based on this species. 

 The Scarus cceruleus of Bloch & Schneider is, however, free from any 

 confusion with chrysopterum or related species. /Scarus trilobatus Lace- 

 pede is somewhat doubtful, and Sparus holocyaneos Lac. is involved in 

 confusion with Sparisoma chrysopterum. The obtusus and nuchalis of 

 Poey are probably forms of cceruleus. 



111. SCARUS CCELESTINUS. 



Scarus ccelestinus Cuv. & Val., xiv, 180, 1839 (St. Thomas) ; Jordan, Proo. U. S. Nat. 



Mus., 1886, 543 (St. Thomas), (note on original type). 

 Pseudoscarus coplestinus Guichenot, Scarid6s, 22, 1865 (note on type); Poey, Syn.. 



349, 1868; Poey, Euumeratio, 118, 1875 (Havana). 



Habitat. — West Indies. 



Etymology : Ccelestinus, heavenly (blue). 



This species is known to us only from the examination of the original 

 type, a dried skin in the museum at Paris. It is apparently distinct 

 both from 8c. cozruleus and 8c. guacamaia. 



112. SCARUS SIMPLEX. 



Pseudoscarus simplex Poey, Repert., i, 185, 1867; Poey, Syn., 349, 1868; Poey, Enu- 

 meratio, 118, 1875 (Havana). 



Habitat. — West Iudies. 

 Etymology : Simplex, simple. 



We know this species from Poey's description only. It is very close 

 to Sc. ccelestinus, and may not be different from the latter. 



113. SCARUS PLEIANUS. 



Scarus guacamaia Cnv. & Val., xiv, 178, 1839 (St. Thomas). 



Pseudoscarus guacamaia Guichenot, Scaride"s, 21, 1865 (note on type), (not Scarus gua- 

 camaia Cuvier). 

 Scarus pi eianus Poey, Mem. Cub., ii, 393, 1860 (based on Sc. guacamaia C. & V.). 



Habitat — West Indies. 



Etymology : Named for M. Plee, who collected for Cuvier in the 

 West Indies. 



It is evident that Scarus guacamaia C. & V., the " Grand Scare aux 

 machoires bleus," with 3 to G posterior canines, can not be the 

 original Scarus guacamaia of Cuvier, which has no canines at all. ISTo 

 other writer (except Guichenot) has examined any specimens referable 

 to the guacamaia of Valenciennes, but Poey has given to these descrip- 

 tions the name of Scarus pleianus, which species must keep if it be 

 really valid. 



