372 Transactions. 



has supplied, notes and sketches which enable me to refer the shark to the 

 genus Carcharias. The absence of black on the fins removes it from possible 

 alUance with the common Pacific C. melanopterus. I recorded C. meni- 

 sorrah from Lord Howe Island, and found it to be as common there as the 

 species noticed by Mr. Oliver at the Kermadec Islands. 



The shark which Mr. Moseley mentioned as having been caught with 

 four or five pilot-fi&h about it was suppoc.ed by Dr. Giinther to be C. 

 lamia* 



Lampanyctus guntheri, Goode and Bean. 



D. 13 ; A. 13 ; V. I, 8 ; P. 16 ; C. 19 + 12. L. lat. 38 ; L. tr. 2-4. 



Length of head, 3-3 ; height of body 5-2 in the length ; eye, 3-1 ; inter- 

 orbital space, 4-6 ; and length of snout, 5-6 in the head. 



Preopercle very oblique, the angle acute, the mouth large, subhorizontal, 

 the maxilla extending to the preopercular angle. 



The dorsal fin arises midway between the front margin of the eye and 

 the base of the caudal, the length of its base 1-7 in the head ; adipose fin 

 present, immediately behind the vertical of the anal ; the anal commences 

 beneath the last ray of the dorsal, and its base is slightly less than that of 

 the dorsal ; the ventral lies beneath the second ray of the dorsal, and just 

 reaches to the anal fin ; the pectoral is very long, longer than the head, 

 and it reaches to the middle of the anal ; the caudal is deeply forked, its 

 length being 1-3, and the least depth of its peduncle 3-6 in the head. 



The scales are smooth, those of the lateral lijie scarcely enlarged. 

 Luminous scales are also present on the hinder part of the caudal peduncle 

 above, and below they extend from the anal fin to the caudal ; apparently 

 luminous scales also exist before and behind the dorsal fin ; the nostril and 

 the margin of the preopercle likewise seem to be luminous. 



The photophores lie as follows : — Opercular : 3, close behind the margin 

 of the preopercle. Pectoral : 3, one below the lateral hue, one on the base 

 of the fin, and the third above the second thoracic. Antero-lateral : 1 

 above the base of the ventral fin. Medio-lateral : 3, the upper one on the 

 lateral line above the first anal ray. Postero-lateral : 2, the upper just 

 below the lateral line over the last anal ray. Thoracic : 5, the last slightly 

 raised and at the base of the ventral. Ventral : 5, the first and fourth 

 below the others, and the fifth beneath the lowest medio-lateral. Anal : 11, 

 the first the lowest, a wide break between the sixth and seventh at the base 

 of the last anal ray. Caudal : 4, the last just below the lateral line. 



The colours are of the dark hue usual with Myctophids, the dorsal, anal, 

 and caudal being dotted, the dots forming closely set bars. 



Eight specimens, washed ashore. The only example before known ap- 

 pears to be the type, taken ofi Newfoundland. 



Length, 60 mm. 



The points in which the specimens differ from the description of 

 L. guntheri are so slight that I decide to refer them to that species, and 

 indicate the ascertainable differences. 



In the Kermadec Island examples there is but one antero-lateral photo- 

 phore in place of two, and the anals iiumber 6 -|- 5 as against 5-1-5. The 

 dorsal fin also appears to have a slightly more forward position. 



Two misprints in the original account, which have been copied l:)y 

 subsequent writers, may be here corrected : " Dorsal origin a httle nearer 



* Chalt. Rep.. .Summary, pt. i, p. 617. 



