NEW OR INSUFFICIENTLY DESCRIBED FISHES. 53 
pectoral 3*35, of ventral 4*2 in length of body. Length of snout 
2*15, diameter of eye 4'5, width of interorbit 4 35, last dorsal spine 
275, last anal 2"6 in length of head. 
Dorsal contour of body linear or but feebly arched, consider- 
ably higher than the ventral contour, its highest point above the 
base of the pectoral. Head as deep as long; upper profile of snout 
sublinear and rather strongly declivous. Eye small, its diameter 
1*5 in the depth of the preorbital. Cleft of mouth extending to 
below the anterior nostril. Anterior canines moderate ; tips of 
lateral mandibular teeth prominent; no posterior canine. Pre- 
opercle very finely serrated. Cheeks with seven series of non- 
imbricate scales ; some of the opercular scales as large as the breast- 
scales ; scales at the base of the caudal fin somewhat enlarged and 
angulated. 
Soft dorsal and anal fins of moderate height, obtusely pointed 
and subequal posteriorly, the penultimate rays just reaching 
beyond the base of the caudal. Caudal fin feebly rounded. Pec- 
toral rounded, the fourth ray longest, but little longer than the 
third, and extending to below the twelfth scale of the lateral line. 
Ventral obtusely pointed, the second ray longest, reaching to or not 
quite to the vent. 
Upper surface and sides purple, shading into vinous gray below, 
the latter color extending upward as a conical bar from below the 
the middle of the appressed pectoral to the lateral line,* and 
posteriorly suffusing the whole peduncle above the lateral line, the 
purple being represented only by a narrow band below and includ- 
ing that line. Cheeks and opercles with a rufous tinge, and closely 
studded with small light blue spots. Dorsal fin purple, except the 
last two rajs, which are vinous like the peduncle, the spinous por- 
tion with a faint darker longitudinal band on its outer half ; caudal 
fin dull blue-gray ; anal, ventral, and pectoral fins grayish yellow, 
the latter with a blackish base. 
I have much pleasure in naming this handsome species after 
my valued correspondent Professor Max Weber of Amsterdam, 
who, like myself, has recently paid some attention to the fishes of 
the Aru Islands. 
* Sometimes this bar is faint, rarely absent. 
