A I\Ionograph of Marcus Island. — Appendix . \il 



there may have been eight bands ; each band has two conspicuous 

 darker brown spots in it. Fins all pale brown ; soft dorsal with a 

 row of dark dots on each membrane between rays. A small dark 

 brown line slightly below and back of eye. 



This must have been a very beautiful fish in life. One speci- 

 men, 99 mm. long. B. P. B. Mus. No. 2455 is the type. 



2456. Salarias marcusi. New species. 

 D. XI1-21 ; A. 22 ; C. 13; P. 14. Depth equals length of head, 

 4.33 in length without caudal, 5.50 in total length. Eye 3.75 in 

 head. Breadth of head 1.63 in its own length. Width of inter- 

 orbital space 2 in eye. Mouth inferior, width of cleft .50 of length 

 of head. Teeth very numerous, small, finely pectinate. Anterior 

 profile of head convex. A small dermal crest on head ; in one 

 specimen its height is .50 width of interorbital space ; in the other 

 specimen it is merely a heavy keel ; a small, simple tentacle over 

 eye, its length equal to width of interorbital space ; a much smaller 

 simple tentacle on nape, its length somewhat more than .50 that of 

 tentacle over e3'e ; anterior nostril with a fleshy tube, the upper 

 border of which is prolonged into a stout, but not lengthy, fringed 

 tentacle. 



L,ateral line commences just above upper angle of opercular 

 flap ; curving upward it follows the dorsal outline from the fourth 

 to the tenth dorsal spines, then curving obliquely to a point beyond 

 tip of pectoral, it follows the median line of the body to the base 

 of the caudal ; tubes of lateral line disappear at about middle of 

 soft dorsal, the remainder of the lateral line being marked by pores 

 and depressions. 



Origin of dorsal anterior to gill opening, the tip of opercle 

 being under base of third dorsal spine. Dorsal deeply notched, 

 spinous portion highCvSt anteriorly ; third and fourth spines long- 

 est, .80 of length of head and equal to highest soft rays ; dorsal 

 membrane incised, spines and rays with free tips, dorsal conne(5led 

 with caudal by a membrane. Anal membrane deeply incised, 

 rays with free tips; fin much lower than dorsal, longest rays .50 

 length of head. Caudal convex; rays divided in posterior .66 of 

 their length, the tips free. Pectoral somewhat rounded, tips of 

 rays free, its length equal to that of head. Conspicuous mucus 

 pores below and posterior to eye. 



