Dr J. E. Gray on the Berardius of New Zealand. 115 



e, eye ; p e, pupal eye ; /, finger-shaped processes ; //, fore foot ; 

 hf, hinder foot ; pf, pupal feet ; s, stomach ; pv, proventriculus ; 

 7n»r, maxillae ; md, mandibles ; p, palpi ; ms, muscles ; tr, tra- 

 cheae ; fb, fatty bodies ; tf, terminal filament ; o, ova ; s b, stig- 

 matic branchiae ; c b, chitinous band ; g o, genital orifice ; a o, anal 

 orifice ; pn, pronotum ; w, wing. 



Fig. 5. A portion of an ovum. The blastoderm has acquired several 

 layers ; and in its mass are the polar cells, the diameter of which 

 is 0-012 miUim. 



Mg. 6. The same, rather later; the polar cells have separated into two 

 gi'oups : a, furrow. 



Fig. 7. The developing ovary removed from a larva contracted in folds ; 

 diameter 0031 millim. : e c, embryonal cells j n, nucleus of the 

 ovarian tube. 



Fig.S. An ovary removed from a perfectly developed larva; six embryonic 

 ovarian tubes are visible in it, containing nuclei; diameter 

 0"057 millim. : e c, embryonal cells ; o t, ovarian tubes ; n, nucleus. 



Fig. 9. Ovarian tube from a young larva : v c, vitelligenous cells ; ep, epi- 

 thelium ; n, nucleus. 



Mg. 10. Part of an ovarian tube (magn. 475 diams.). The left side of 

 this figure represents the object seen on the surface, and the 

 right side the optical transverse section. The ovum (o) will 

 soon be detached. The vitelligenous celb (v c) are only indi- 

 cated, and are too small; ^/, terminal filament; <c, terminal 

 chamber ; ep, epithelial cells ; ep', epithelial cells as seen at the 

 surface; ^ c, germ-chamber ; o d, oil-drops; g v, geraiinal vesi- 

 cle ; g s, germinal spot ; v c, vitelligenous cells ; v, vitellus. 

 Diameter of the ovum (o) 0-085 millim., of the germinal vesicle 

 0-0432 millim., of the vitelligenous cells 0-0250 millim., of the 

 epithelial cells 0-0224 millim., of the germinal spot 0-0078 mil- 

 lim. ; length of the germ-chamber 0-044 millim. ; length of the 

 terminal chamber 0-922 millim., diameter of its nuclei 0-0085 

 millim. ; thickness of the terminal filament 0-0060 millim. ; 

 diameter of the oil-drops 0-0048 miUim. 



Fig. 11. Portion of an ovarian tube at the moment of its division into 

 chambers, the contents being already divided, and the nucleus 

 in course of division ; magn, 630 diams. The lettering as in 

 fig. 10. 



Fig, 12. A perfectly developed ovum in which the germinal vesicle is 

 visible, preserved in glycerine ; diameter of the germinal vesicle 

 (g v) 0-045 millim. : I, lobule surrounding the micropyle. 



XIV. — Notes on the Berardius of New Zealand. 

 By Dr. J. E. Gkay, F.R.S. &c. 



Dr. Hector kindly sent me an early impression of Dr. Knox's 

 and his own paper on the Ziphiidcej illustrated with five plates, 

 which is to be published in the third volume of the ' Transac- 

 tions of the New-Zealand Institute.' It contains a figure of 

 the animal of Berardius, various parts of the skeleton, and the 

 details of two skulls. From it I give the following character 

 to the animal of this genus, which was previously known only 



