50 THE VOYAGE OF H.M.S. CHALLENGER. 



length being equal to its distance from the vent ; the nasal and maxillary barbels do not 

 extend to the end of the head ; lower lip not pendent or fringed ; isthmus between the 

 branchial membranes comparatively broad, as broad as the interorbital space. Inter- 

 maxillary teeth conical, in two subtriangular patches ; vomerine teeth more obtuse, in 

 two series which form a subcrescentric baud ; mandibulary teeth in a band. Eye of 

 moderate size. The first dorsal is lower than the body, and placed at a very short 

 distance from the occiput ; spine serrated in front and behind, as long and strong as that 

 of the pectoral fin. Light brownish, fins with a black margin. Length of specimen, 

 8|- to 9 inches. Arafura Sea. 



Saurtis intermedius, Agass. 



Hitherto known from the Atlantic only. Arafura Sea. 



Saurus kaianus, n. sp. (PL XXIII. fig. C). 



D. 11, A. 10, V. 8, L. lat. 63, L. transv. 3-|-/8. Body subeylindrical. Length of the 

 head contained thrice and two-thirds in the total (without caudal). Snout depressed, 

 j)ointed, nearly as broad as long, with the uj)per jaw projecting beyond the lower. 

 Interorbital space slightly concave, narrower than the eye, the diameter of which is two- 

 ninths of the length of the head. Frontal bones without sculpture. There are seventeen 

 scales between the occiput and the dorsal fin. Dorsal fin as high as long. The pectoral 

 fin extends to the twelfth scale of the lateral line. The series of scales on the tail without 

 keel. Uj)per parts greenish, lower silvery. A series of blackish sj^ots alternately larger 

 and smaller along the middle of the body. Ki Islands. I^ength-of specimen, 5-J inches. 

 Station 192; 129 fathoms. 



Sau7'ida grandisquamis, Gthr., Arafura Sea. 



Belone strongylurus, Blkr., Somerset. 



Belone annulata, C. V., Somerset. 



Hemirhamphus quoyi, C. V. , Somerset. 



Hemirhamphus commersoni, Cuv., Somerset. 



Chirocentrus dorab, Forsk., Somerset. 



Fhyllojyteryx tcBuioiohorus, Gray, male with full pouch. Cape York. Station 186; 



8 fathoms. 

 Triacanthodes anomalus, Schleg., Ki Island. Station 192; 129 fathoms. 

 Monacanthus penicilligerus, Q-av. Station 188; 28 fathoms. 

 Monacanthus longirostris, Cuv., New Caledonia. 



Monacanthus filicauda, n. sp. (PI. XXIII. fig. D). 



D. 35, A. 37. Scales minute, the entire surface of the fish being uniformly covered 

 with asperities longitudinally arranged. Dorsal spine rather slender, longer than the 



