ICHTHYOLOGY. 209 



AjrnLYAPisTrs, Blefher. 



Branchiostegals 5 or 6. Hoad and body strongly corapressed. ISo occipital 

 groove. Strong and sharp preorbital and preoporcular spines. Teeth as in Apistus. 

 A single dorsal. Scales rudimentary or none. Air-vessel present. 



A. T.ENIANOTUS, Lacep. 



B. v.; D. 1 i,^,"; P. 12; V. i; A. ^^ \ C. 12. 



Profile over the snout almost vertical. Preorbital, prcopcrcle and opercle spinate. 

 Dorsal high anteriorly, its second spine highest. AH the articulated fin rays 

 branched. Colour reddish, with irregular brownish spots. A brown mark between 

 the fifth and sixth or seventh dorsal spine. 



The Andanmns. 



A. MACRACAXTHDS, Bloekcr. 



B. Yi. ; D. if-H; P. 12; V. i ; A. f; C. 12. 



Five spines in the preopercle and two on both the opercle and preorbital. Bar- 

 bels none. Dorsal commences before the eyes, and is high anteriorly ; the first threo 

 spines slightly distant from tlie rest, and the second highest. All tlic articulated fin- 

 rays branched near their extremities. A few scattered and imbedded scales. Colour 

 brownish black, the pectoral white bordered. 



The Andamans. 



CocoTEopus, Kaup. 



Branchiostegals G. Head and body strongly compressed. No occipital groove. 

 Preorbital and preopercle witli a strong blunt spine. A single dorsal. Articulated 

 fin-rays unbrauched. Villitbrm teeth on jaws and vomer only. Scales absent. 



C. Ecni>fATUs, Cantor. 



B. vi.; D. H; P. 11; V. i; A. ;; C. 12. 



Anterior profile nearly vertical. Body and liead studded with small blunt 

 prickles. Colour huff, with five brown lines radiating from the eye. Upper edge of 

 dorsal purple. Body brown blotched, and fins brown dotted. Two white spots on 

 the tail. 



The Andamans. 



Pelok, Cuvier et Valenciennes. 



Branchiostegals 7. Head irregular. Villiforra teeth in jaws and vomer only. 

 Scales absent. Head, body, and fins covered with skinny appendages. Dorsal spine 

 single, its three anterior spines a little distant from the rest. Air-vessel small. 



P. DIDACTTLUM, Pall. 



B. vii.; D. \^\^; P. lO-hll; V. } ; A. 11-12; C. 12. 



Lower jaw the longer, and provided with fleshy tentacles. Interorbital space 

 concave, and with a transverse ridge ; an occipital depression and groove below the 

 eyes. Blunt spines on orbit. Occipital and temporal ridges spinate. A turbinal 

 spine. Second dorsal spine longest. Skinny appendages on the deeply cleft dorsal 

 web. Colour brownish-grey, dirty-white below. Head and body with five spots. 

 Caudal yellow, with a dark vertical band at the base, and a second across its terminal 

 third. 



The Andamans. 



Fa mill/ Teuthidse. 



Branchiostegals 5. Pseudobranchia; well developed. Body oval and strongly 

 compressed. A single row of cutting incisors in cither jaw. Palate edentulous. 

 One dorsal. Anal with 7 spines. Scales minute. Air-vessel present. 



Tkuthis, Linnmus. 



Teeth small, denticulate. Dorsal with 13 spines, and one anterior and horizontal. 



U 



