3D 



S. TANAKA : 



of the second third of snout length, becomes a median line that 

 runs along back of snout. Posteriorly the interorbital ridges slightly 













ISS^: ^ 





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Solenostomus hptosoma Tanaka. Type. 



converge toward each other down to end of occipital region, whence 

 they continue farther as parallel ridges along the back. On nape a 

 median ridge with retrorse spinules runs backward, ending at origin of 

 first dorsal. Occipital part translucent, so that the brain is faintly 

 visible through skin. Snout compressed, long, slender, tubular ; the 

 preorbitai part steep in upper profile ; outside the point of meeting of 

 the ridges running forward from interorbital, a bundle of about 3 small 

 hooked spines is present. The above-mentioned ridge with spinules 

 runs along back of snout and stops at a point about half way in the 

 length of snout. Outside this ridge there run the upper, lateral, spine- 

 less ridges parallel with each other, leaving a narrow area between 

 them. Lower lateral and mandibular ridges without spines. Mouth 

 terminal, directed upward ; its cleft measured from tip of snout to 

 corner of mouth equal to interorbital width. Body with several rows 

 of spinules. Before first dorsal and ventral, a median ridge with 

 spinules ; upper lateral, middle and lower lateral ridges present, forming 

 4 parallel series of plates on each side of body. Behind first dorsal 

 and ventral, median ridges absent, but behind anal a rudimentary 

 ridge reappears on belly. A scries of plates on body, 32 in number, 

 of which 4 are before first dorsal, 6 between the origin of first dorsal 

 and vent, 22 between vent and caudal base including vent. First 

 dorsal extends over one and a half plate ; second dorsal and anal 



