THE ANNALS 
AND 
MAGAZINE OF NATURAL HISTORY. 
[SIXTH SERIES.] 
No. 54. JUNE 1892. 
LXII.—WNatural History Notes from H.M. Indian Marine 
Survey Steamer ‘Investigator,’ Commander Richard Frazer 
Hoskyn, R.N.*, commanding.—Series IL, No. 3. On 
Utero-gestation in Trygon Bleekeri. By A. Atcock, M.B., 
Surgeon I.M.S., Surgeon-Naturalist to the Survey. 
[Plate XIX.} 
CONTENTS. 
. Introduction. 
. The Pregnant Female and the Gravid Uterus of Trygon 
Bleeker. 
. The Secretory Uterine Villi, or Trophonemata. 
. The Glands of the Uterine Villi, or Trophonemata. 
. The Nature of the Secretion. 
. The Feetus of Trygon Bleekerz. 
. Recapitulation and Conclusion, 
LR 
LALAtnrtmnrn Cnr 
“I OD Clim to 
§ 1. Introduction. 
OnE of the most interesting of the discoveries made by the 
‘Investigator’ in recent years is that there are certain Elas- 
* This paper was far advanced before the lamented death of Captain 
Hoskyn, and so I leave it associated with his name, whose breadth of 
mind, whose high intellectual reach, and whose generous concessions to 
the interests of science are an irreparable loss to nayal exploration. 
Ann. & Mag. N. Hist. Ser. 6. Vol. ix, 32 
