350 OHIlIiERIDJJ. 



Tail terminating in a very long iinless filament, about as long as 

 the body and head. The first dorsal fin close to and subcontinuons 

 with the second, low dorsal fin, the upper margin of which is even, 

 not notched, except just in front of the caudal fin, which is also low. 

 Each clasper of the male is divided into two long, slender branches, 

 which are rather longer than the snout ; and the inner branch is 

 again longitudinally divided into a simply cartilaginous styliform 

 part and another coated with the spiny membrane. Brown, marbled 

 with lighter ; dorsal fins with a broad black margin. 



Coasts of Europe ; Cape of Good Hope ; Japan. 



a-h. Adult male and female. Jutland. Presented by W. Edwards, 



Esq. 

 c-d. Adult male and female. North coast of Norway. Purchased 



of Mr. Brandt. 

 e. Adult male. Shetland Islands. Presented bv J. Gwyn Jeffreys, 



Esq. 

 /. Adult female. Lisbon. Presented by the Rev. R. T. Lowe. 

 r/. Adult female. Nice. Presented by Sir Ph. Egerton, Bart. 

 h. Adult male. Nice. From Dr. Deakin's Collection. 

 i. Adult male. 

 Jc, I. Adult and half-grown females. 



2. Chimsera coUiei. 



Chimpera colliei, Bennett, in Becchei/s Voi/. Zool. p. 71, pi. 28. figs. 1 & 

 2 ; Crirard, ZT. S. ^- Pac. JR. li. Exped. Fish. p. 3G0 ; Dumiril, Elasmobr. 

 p.G89. 

 Hydrolagus colliei, Gill, Proc. Ac. Nat. Sc. Philad. 1862, p. 331 (name 

 only). 

 Tail simply tapering, without filament. Three dorsal fins, beside 

 the caudal : the first, with the spine, is separated by a considerable 

 interspace from the second ; the three other fins low, subcontinuons. 

 Each clasper of the male is divided into two club-shaped branches, 

 which are rather shorter than the snout ; both branches coated 

 with the spiny membrane, and the inner is not subdivided. Brown, 

 shining silvery, upper parts ■svith round yellowish spots. 



West Coast of North America. 

 ff. Adult male. Esquimalt Harbour. From Mr. Lord's Collection. 

 h. Adult male, not in good state. Monterey. Presented by J. H. 



Gurney, Esq. 

 c. Adult male. From Mr. Goodridge's Collection. 



3. Chimsera affinis. 



Capello, Joiirn. Math. Phi/s. e Nat. Lisb. iv. 1868. 

 Body more elongate than in Ch. monsirosa and Ch. colliei, which 

 are stouter and shorter. Second dorsal fin removed from the first 

 a space equal to the length of the base of the latter. The second 

 dorsal fin is much lower than in any of the other species, and with 

 the free border straight, without undulations. The space between 



