196 Fishes 



from that described by Rheinhardt (1837) in having a comparatively 

 deeper body, fewer thong-like appendages to the tentacle, and five rays 

 in the soft dorsal, and seventeen in the pectoral fin, as against nine and 

 twelve mentioned by Rheinhardt. 



Gill (1878), on the strength of these differences, proposed to refer 

 Ltttken's species to a separate genus, Corynolophns, but his proposal 

 has never found any favour outside the United States. 



A third specimen, 20' 7 centimetres long, was captured off the coast 

 of the Westman Isles, near Iceland, in 1886, and examined by Liitken 

 (1887), who identified it as a young example of H. Rheinhardti. 



A fourth specimen, 41 centimetres long, was captured alive in a 

 trawl in 80 to 90 fathoms of water, fourteen miles from Nazareth on 

 the west coast of Portugal (a short distance north of the Bindings) in 

 1892, and was examined and described by Girard (1893). This fish 

 had lost its tentacle (cut off by the captors) before it came into 

 Girard' s hands, but was otherwise in good condition, and appears to 

 have very closely resembled Liitken's larger example and that next 

 described. Girard suggested that H. grcenlandicus and H. Rheinhardti 

 might well be synonyms for the same species, a question to which we 

 will revert later. 



The fifth known example of this remarkable genus was captured 

 by the Silver Belle in March, 1906, while trawling in 20 to 25 fathoms 

 of water close to the east of Gibraltar. This specimen is smaller 

 than Lutken's first specimen or Girard's, but agrees with them in all 

 essential particulars. It is unfortunately somewhat distorted from 

 being preserved in too small a receptacle. 



The history of the genus may be completed by adding that Liitken 

 tentatively referred to it some very young specimens taken at the 

 surface of the South Atlantic ; but the generic identity of these 

 specimens is open to so much doubt that we leave them out of con- 

 sideration in discussing the probable habits and habitat of these fishes. 

 A brief description of the specimen taken by the Silver Belle 

 follows : 



Form stout and somewhat compressed ; greatest depth of body 



