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PKOCEEDINGS OF THE NATION.VL MUSEUM 



VOL. 85 



jaw; small, sliort transverse band of minute, feeble teeth on vomer; 

 palatines toothless; interorbital deep, broadly depressed concavely. 

 Gill rakers 1 + 9, of which lowest 4 mere short, low, weak rudiments; 

 lanceolate, subequal with gill filaments or 3 in eye. 



Pair of broad, flat, divergent rostral spines, extended forward, long 

 as eye; small postero-orbital spine; long, slender suprascapular 

 spine, flaring out and back, about 3 in head; ridge of suborbital 

 stay but feeble keel, ends in small sharp spine at preorbital angle 

 reaching o-ill opening; slender, pointed opercular spine, little below 

 level of eye; long humeral spine horizontal, about 3 in head. 



Lateral line with 50 scales in its course to caudal base; 10 above, 

 22 below; 10 predorsal. Kow of 9 more or less ill defined sca- 

 brous bucklers along each side of base of first dorsal. Body and 



RW.F.del. 



Figure 54. — Bovitrigla acanthotnopUitc, new genus, new species. Type. 



tail largely with fine scales, some extending on base of caudal; 

 middle and sides of breast with small scales, chest, prepectoral re- 

 gion and area around bases of paired fins naked, though belly cov- 

 ered with fine close set scales. Scales small, pear-shaped, each end- 

 ing in a single apical spine ; basal portion trilobate ; circuli imperfect, 

 uneven. 



D. VIII-11, I, second spine 2i/4 in head, fourth ray 2% ; A. I, 11, 

 I, eighth ray 3i/^ ; caudal li/^, hind edge obliquely and slightly emar- 

 ginate; least depth of caudal peduncle 2 in eye; pectoral lyV in head, 

 rays ii, 5, v-iii, uppermost of 3 detached rays 1% in upper section of 

 pectoral fin ; ventral 1% in head, rays I, 5, fin reaches vent. 



Brown, with traces of gray or silvery sheen on sides of head. 

 Under surface of head, chest, breast, prepectoral region and belly 

 silvery white. Iris pale, evidently white. Fins all pale or light. 

 First dorsal with first to third membranes on outer half dull brown- 

 ish. Second dorsal marginally brownish. Upper part of pectoral, 



