Mr. A. Alcock on Indian Bathyhial Fishes. '6b'S 



cuLes. The ovum is defined by an egg-membrane of some 

 thickness, wliich often sliows as a broad double-contoured 

 wavy line. The contents of tlie ovum are granuhir, and, as 

 seen in transverse section, the granules have a tendency, best 

 marked in tlie large ova, to arrange themselves in concentric 

 circles round the nucleus, the innermost circle forming a tine 

 darkly staining (carmine) circum-nuclear chain. The nucleus 

 is a large circular or oval vesicle, sharply bounded by a very 

 distinct nuclear membrane, and having a diameter nearly half 

 that of the entire ovum. It contains from twenty to thirty, 

 and sometimes even more, large vesicular nucleoli, deeply 

 staining with carmine, which, in a view of a transverse 

 section, have an inclination to fall in a ring round the peri- 

 phery of the nucleus. In the largest ova the nucleoli are not 

 so numerous and have no particular arrangement. 



Jn the very smallest ova the follicular epithelium is not 

 distinguishable. 



10. Macrurus Wood-Masoni, Alcock. 



Macrurus Wood-Masoni, Alcock, Ann. & Mag. Nat. Hist., Oct. IS'JO, 

 p. 301, and Aug. 1891, p. 121. 



In the original description of the type, which had suffered 

 some denudation, it is stated that the lateral line runs 4^ rows 

 of scales beneath the first dorsal instead of 5^, as all our later 

 specimens show. In all thesespecimens, moreover, the terminal 

 j)ortion of the gut forms a wide pouch, which in one instance 

 recalls the external appearance of the so-called " colon " of 

 the Elasmobranchs. 



Several specimens from Station 128, 902 fathoms, and 

 Station 135, 559 fathoms. 



Bathygadus, Giinther. 



11. Bathi/(/adas cottoides, Gixnthev '^ 



? liathygadu^ cvttoides, Giiutlier, ' Challenger' Deep-sea Fiirlief*, y. 164, 

 pi. xlii. tijr. A. 



I refer with some hesitation to this species a small .specimen 

 from Station 131, 410 fathoms, which agrees in most essen- 

 tial particulars with Dr. Giintiier's description. Tlie only 

 apparent divergences of the specimen are (I) tiiat tlie eye is 

 relatively larger, and (2) that the first dorsal ray is a little 

 ])rolonged, both of which differences would become less aiul 

 less marked with the advance of aye. 



