1912. ] R. B.S. SEWELL : Notes on deep-sea fish. 3 
Rhinochtmaeva | Rhinochimaera : 
atlantica, Holt| sp. (present | ‘eae ss 
and Byrne. specimen. ) . 
Total length bi 5c 204 168 + 130+ 
Total length of body and style 158 138 | 120 
Length of membrane in front of 20 | 21 10+ 
body. | | 
Length of body .. xt | 94 77 64 
Length of anterior narrow part | 25 20 17 
of body. | 
Greatest total width £3 62+ 50 38+ 
Dorsal surface. 
Width of anterior part of body Zi 15 15 
Width at neck oe 19 13 18 
Greatest width of body a 31 ca. 23°5 25 
Width of style at origin ss 9 6 yee 
Width of style at its middle .. 5 Ze5 4°7 
Width of posterior end of style IO 8°5 6°5 
Ventral surface. 
Width between (including) ridges 13 | 10'S 8 
at anterior end. | 
Width between (including) ridges 19 | 15°5 12 
in front of patch of byssus. 
Width between (including) ridges 15 | 13 | EI 
at neck. 
Greatest width of body between 25 | 19 7 
(including) ridges. | 
Width of gutter between ridges | ? (very narrow) I°5 mm. R08) 
8 in middle of style. ' 
Colour as Black. Black. Pale bottle 
green. 
Patch of byssus .. | Ig mm. Square | 14 mm. square | 7°5 mm. square 
Unfortunately both ends of the capsule are somewhat torn, 
the lateral margins are, however, entire and are, as usual, ridged— 
presenting in all from 48—5o ridges. The lateral lips of the mouth 
are smooth and free from the “‘ ruffle-like serrulae’’ present in 
Harniotta. 
The neck is distinct and narrower than either the head or 
body, a point in which it differs from Alcock’s example of Harriotia, 
in which the neck is much less marked and, as will be seen by a 
reference to the preceding table, wider than the head portion. 
The style is narrow and widens out posteriorly into a spatu- 
late tip which is produced in a lanceolate tag of delicate mem- 
brane. On either side of the style close to the line of origin of the 
lateral membrane is a distinct ridge, the posterior two-thirds of 
which is transversely ribbed by the caudal pores. In this respect 
the capsule closely resembles that of R. pacifica (Bashford Dean: 
‘“‘ Notes on the long-snouted Chimaeroids of Japan,’’ Journ. Coll. 
Sct. Tokyo, xix, Art. 4, p. 19, pl. ii, fig. 12a). The pores, however, 
are continued further forward along the style. 
A point of difference between this specimen and other previ- 
ously described examples of Rhinochimaera capsules is the presence, 
