1909. ] FROM CHRISTMAS ISLAND. 405 
jaw; tentacles all simple, the nasal and nuchal pairs short, the 
ocular pair longer ; no crest on the head. Dorsal XII 15; notch 
rather deep ; last ray not connected with the caudal. Anal 18-20. 
Caudal rounded or subtrunecate. Reddish, with about 8 darker 
cross-bars, sometimes appearing only as a series of oblong blotches 
along the middle of the sides ; fins pale. 
Several specimens, measuring up to 45 mm. in total length. 
14. BLENNIUS ATROCINCTUS, sp.n. (Plate LXVI. fig. 1.) | 
Depth of body nearly equal to the length of head, about 5 in 
the length of the fish. Snout vertical; maxillary extending to 
below middle of eye; no canines; nasal and orbital tentacles 
bifid ; no nuchal tentacles; no nuchal crest. Dorsal XIII 17; 
first three rays rather wide apart; notch rather deep; last ray 
not connected with the caudal. Anal 22. Caudal rounded or 
subtruneate. Reddish, with 6 blackish cross-bars continued on 
to the basal part of the dorsal fin ; anal blackish. 
A single specimen, 27 mm. in total length. 
15. SALARIAS HASSELTII Bleek. 
16. SALARIAS CAUDOFASCIATUS, sp. n. (Plate LX VI. fig. 3.) 
Allied to S. marmoratus Benn. Depth of body a little less 
than the length of head, + the length of the fish. Snout vertical ; 
maxillary extending to below posterior edge of eye; a pair of 
posterior canines in the lower jaw; nasal and orbital tentacles 
fringed; a pair of short, simple nuchal tentacles; no crest. 
Dorsal XIT 15; anterior portion low; second portion elevated, 
with the rays decreasing in length from the first; last ray not 
joimed to the caudal. Anal 18. Caudal subtruncate. Reddish, 
with scattered pale spots and with 6 dark cross-bars, each of 
which is split into two; caudal with dark vertical bars; anal 
dusky. 
A single specimen, 55 mm. in total length. 
17. SALARIAS NATALIS, sp. n. (Plate LXVI. fig. 4.) 
Allied to S. unicolor Riipp. Depth of body equal to or less 
than the length of head, 54 to 6 in the length of the fish. Snout 
vertical ; maxillary extending to below posterior edge of eye or 
beyond; a pair of posterior canines in the lower jaw; nasal 
tentacles simple or fringed ; orbital tentacles rather long, fringed ; 
no nuchal tentacles; an occipital crest. Dorsal XII—XIIT 17-18; 
notch deep; last ray not joined to the caudal. Anal 20-22. 
Caudal subtruncate or rounded. Head and body with 14 purplish 
cross-bars arranged in pairs and usually split up to form 3 longi- 
tudinal series of spots; fins dusky, the dorsal with oblique 
stripes. 
Eleven specimens, measuring up to 60 mm. in total length. 
