10 ON NEW OR INSUFFICIENTLY DESCRIBED FISHES 



length of body. Length of snout 2-80 diameter of eye 

 3*15, width of interorbit 4*20, length of maxillary 2-66, 

 of mandible 2*10, height of spinous dorsal 1-80, length of 

 ventral 2- 00 in length of head. 



Body elongate-elliptical, somewhat compressed, its 

 width 1-50 in its depth, the dorsal and ventral profiles 

 about equally convex. Depth of head 1*50 in its length ; 

 snoufc pointed, longer than the eye-diameter, which con- 

 siderably exceeds the feebly convex interorbital width ; 

 adipose lid greatly developed, extending well over the 

 preorbital and opercular regions, and leaving uncovered 

 only a narrow vertical slit, of which the pupil is the centre ; 

 cranio-nuchal ridge moderate, extending forward on the 

 snout ; lower jaw the longer ; maxillary scarcely extending 

 to the level of the eye, the width of its emarginate distal 

 extremity 2*50 in the eye- diameter. A narrow band of 

 fine teeth in the jaws ; vomer, palate, ptergyoids, and 

 tongue smooth. 



Scales smooth, in regula,r series ; throat and breast 

 scaly ; occiput, posterior half of interorbit, inner half of 

 opercle a.nd subopercle, interopeicle, and cheeks scaly ; 

 head elsewhere naked ; soft dorsal and anal fins with a 

 low basal scaly sheath. Lateral line straight to above 

 the middle of the appressed pectoral, thence gently curved 

 to below the anterior third of the soft dorsal, beyond which 

 it is again straight ; posterior portion 1 -40 in the anterior, 

 bearing 31 pla,tes, which are well developed posteiiorly, 

 where each is armed with a strong sharp spine ; anteriorly 

 the line is continued in ?j wide loop over the nape, meeting 

 its fellow immediately behind the nuchal ridge, and forming 

 a definite boundary between the minute occipital and the 

 larger body scales ; the loop itself is bisected by a short 

 supplementary line, which pp-sses forwr.rd along the 

 interorbit and backward over about 7 scales. Caudal 

 peduncle without subsidieory keels. 



Spinous dorsal originating behind the base of the 

 pectoral, the 3rd spine longest, two fifths longer than the 

 2nd ray, which reaches, when depressed, to the be.se of the 

 9th ray ; origin of soft doisal above the vent. Detached 

 anal spines strong and subequal, 2-25 in the eye-diameter, 

 united basally by membrane to one another and to 

 3rd spine, which is inserted below the 6th dorsal ray ; anal 



