1909.] R. E. lyi^OYD : Deep-Sea Fish caught by the ''Investigator.'" 159 



Suborder Anacanthini« 



Family MACRURID^. 



Macrurus {Cœlorhynchus) acipenserinus (Gilbert and Cramer). 



Cœlocephalus acipenserinus, Proc. U. S. N. M., vol. 5^ix, page 422. 



One specimen of this species, which has been recorded previously only from near 



the Hawaiian Isles. Bay of Bengal off Dondra Head, 620 fathoms. Station 321. 



Registered No. ^^£7 



Suborder Acanthopterygii. 



Division PERCIFORMES. 



Family ACROPOMATID^. 



Synagrops splendens, sp. nov. ^ 



Illustr. Zool. " Investigator," Fishes, plate xlvii, fig. 5 (1909). 



B. 7, D. ix-i-io, A. iii 8, P. 17, V. i 5, L.l. 53, L tr. 3-1-9. 



The greatest depth, which is at the anterior end of the first dorsal, is 3^ in the 

 length without the caudal. 



The length of the head is nearly half the total without the caudal, the proportion 

 being 11 : 24. 



The eye is large, it is a quarter the length of the head and is longer than the 

 longest part of the interorbital space. 



The mouth is oblique, the posterior end of the maxilla nearly reaches to a verti- 

 cal through the centre of the eye. 



The length of the snout is slightly less than the diameter of the eye. The lower 

 jaw projects beyond the upper. The symphysis of the lower jaw is very prominent. 

 The nostrils are in front of the upper half of the eye and are much nearer the eye than 

 the end of the snout. The anterior of the two nostrils is the smaller and is placed at 

 a lower level than the other. The posterior margin of the operculum has two thin 

 flexible points, the upper one being the smaller. The lower is formed by a prolonga- 

 tion of the suboperculum and is supported by a third somewhat stronger point, which 

 is the true posterior angle of the opercular bone. The preoperculum has a double 

 border but is not serrated. 



There is a well-marked pseudobranch. The gill-rakers are numerous and flat- 

 tened but not acutely pointed. 



There are small villiform teeth on the premaxillse, palatines and vomer. The 

 teeth of the lower jaw are larger than those of the upper. There is a pair of large 

 canine teeth in the upper jaw and a pair at the symphysis of the lower jaw. 



The deciduous scales are very large and stout, they overlap one another by about 

 three-quarters of their diameter, they are ctenoid, but some of the scales, especially 

 those below the eye, have inconspicuous serrations or none at all. 



