LOPHOBBANCHII. 
137 
470. Aleuteres scriptus. [ 680 .J 
Balistes scriptus, Osbeck, Voy. i. p. 174. 
leevis, Bl. t. 414. 
Aleuteres laevis, Richards. Ichth. Voy. Sulph. p. 131, pi. 61. f. 3. 
Alutarius laevis, Cant. Mai. Fish. p. 355. 
Aleuteres scriptus, Bleek. Atl. Ichth. v. p. 227. f. 4; and Ned. Tydschr. Dierk. iii. 1865, p. 28. 
Zanzibar. East-Indian archipelago. 
Order LOPHOBRANCHII. 
SOLENOSTOMA, Lacep. 
471. Solenostoma cyanopterum. Plate XX. figs. 2, 3. [313.] 
Solenostoma paradoxum, Bleek. Nat. Tydschr. Ned. Ind. iii. 1852, p. 308 (nee Pall.). 
• — > — cyanopterus, Bleek. Act. Soc. Scien. Indo-Neerl. 1859, vi. p. 190. 
D. 5 i 18. A. 16-17. P. 18. V. 7. C. 14. 
Body much compressed ; its greatest depth is below the origin of the dorsal, and is 
contained twice and a half or twice and two-thirds in the distance between the gill- 
opening and the root of the caudal. The body is narrower opposite the pectoral tin than 
opposite the origin of the dorsal ; it is much attenuated above the ventral sac, and dilated 
again between the second dorsal and anal. The free portion of the tail is rather deeper 
than long. The length of the head equals the distance between the gill-opening and 
the end of the dorsal. Eye of moderate size, half the length of the postorbital portion of 
the head. Snout compressed into a thin lamella, its length being one-third of the total 
length without caudal ; upper and lower edges of snout sharp, sides smooth, with the 
exception of a narrow stripe along its upper and lower edge, which is beset with fine 
vertical striae. Edges of upper surface of crown raised, enclosing a groove, which is 
tapering in front. Operculum finely sculptured, with three raised lines radiating from 
the upper part of its base. The integuments of the body are divided into about twenty-five 
rings, the six or seven anterior of which are the broadest, extending to between the two 
dorsal fins ; the remaining rings occupy the posterior half of the body and tail, and are 
much narrower. The divisions are formed externally by more or less conspicuous 
vertical ridges, intersected by three series of interrupted, short, longitudinal ones. 
Pectoral fins very broad, composed of twenty-six short rays. First dorsal five-rayed, 
situated on the fifth dermal ring ; the rays are very long, extending, when laid back, as 
far as the second dorsal fin. The second dorsal is composed of eighteen very small 
delicate rays, situated on a semicircular hump. Caudal very long, acutely rounded, 
composed of fourteen rays, the middle of which are nearly as long as the head. Anal 
with from sixteen to seventeen rays, very similar to the second dorsal. Ventrals seven- 
T 
