92 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



ee. Head unstriiied ; color dark reddish-brown, vitlj whitish mottlings; belly 

 aud fins mostly cherry red ; axillaiy spot obsolete. 



Ajjildgaakoi, U. 



ccc. Caudal fin subtruncate, the angles rounded, the outer rays not longer than 



the uiwiian ones ; canines 2 to 4 on each side, the anterior i)air near 



the median suture of upper jaw (i>erhaps obsolete with age) ; size 



small. 



/. Canines usually 2 to 3 (on different sides) ; color, olive-green, much mottled, 

 reddish l>elow ; edge of opercle, axillary region and a Idotclioubase 

 of j)ectoral deep greenish-blue ; upper fins olivaceous ; anal an<t 

 caudal without black; axil without black Cva.nolknk, 12. 



ff. Canines usually 3 to 4 (on different sides); color, olive-green above, mot- 

 tled and speckled with red; snout with blue lines; axil and base 

 of pectoral black ; fins mostly light orange and yellow, the anal and 

 caudal in the adult largely black Xystkodon, 13. 



6. Sparisoma flavescens. 



Fieja Parra, ]:)escr. Dif. Piezas Hist- Nat. 1787, 59, pi. 28, f. 4 (Cuba). 



Scaruh flavescenii IJloch &, Schneider, Syst. Ichth., 1801 , 290 (after Parra) ; Poey, 



Enumeratio, 187.0, 113 (identification of /Vc. aquaUdus with Parra's figure. 

 Calhjodon fiavencend Cuv. &, Val., xiv, 289, 1839 (after Parra). 

 Scarus ruhripinnis Cuv. «fc Val., xiv, 199, 1839 (Sau Domingo); Ciinther, iv, 



211 (copied) ; Guichenot, Scarid6s Mus. Paris, 13: (copied),? Cope, Trauh. 



Am. Phil. Soc, 1871, 4G2 (St. Croix). 

 ? Scarun virens Cuv. & Val. xiv, 203, 1839. (Porto Kico ; Martinique). 

 Scarus h'jualiduii Poey, Memorias, ii, 218, 1860 (Cuba); Poey, Syjjopsis, 'Sin: 



Jordan &c Gilbeii, Syn. Fish., N. A., 1883, 938 (Garden Key); Giinthei 



iv, 212, 18G2 (copied). 

 ? Scarus chlorin Guichenot, Scarid(is Mus. Paris, 1865, 14 (San Domingo, type 



of HcuruH virerm; not of Bloch &, Schneider). » 



1 Scarun truncatun Poey, Synopsis, 1868, 339; ? Poey, Enumeratio, 1875, 114. 



Head, 3^ {^)•, depth, 2| (3^) ; lenj^th of the specimen deKcribed (Key 

 West), 7^ inches ; body oblong ; jaws pale in color ; no canine teeth ; up 

 per lip covering most of upper jaw ; e^'e rather small, 4^ in head ; snout 

 bluntish, 2| ; cheek with a single series of about five large scales; tubeh 

 of lateral line dividing into about five branches, covering most of the 

 scale; four scales on median line ]>efore dorsal. 



Caudal fin slightly lunate, the upper lobe longer and narrower than 

 the lower, I| in head ; the prolongation of the outer rays varies some- 

 what and is greatest in adult examples ; the concavity of the fin is evi- 

 dent in siKjcimens 3 inches long, but in the very young the fin is trun- 

 cate, or even slightly convex. A few si>eciujens of 6 to 8 inches are in 

 the collection in which the caudal fin appears fairly truncate when 

 spread open, the angles remaining acute. In most cases, however, the 

 fin is slightly concave. 



The caudal fin has essentially the same form in Hporuomafronfjiomm, 

 flaveacenH^ ahildyaardi and aurofrawxtum. In the other HiMH;i<'S nicn- 

 tioned in this paj>er it is mat<irially dift'erent. 



Color of adult in life olivaceous, 80 mewhat clouded with light and 

 dark, and usually flushed with pinkish especially below, the edges of the 

 scales more yellow olive; scales of belly aud lower parts light orange- 



