THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[SIXTH SERIES.] 

 No. 54. JUNE 1892. 



LXII. — Natural History Notes from II. M. Indian Marine 

 Survey Steamer ^Investigator,^ Commander Richard Frazer 

 Hoslx-yn, B.N.*, commanding. — Series II., No. 3. On 

 Utero- gestation in Trygon Bleekeri. By A. A LCOCK, M.B., 

 Surgeon I. M.S., Surgeon-Naturalist to the Survey. 



[Plate XIX.] 

 Contents. 



§ 1. Introduction. 



§ 2. The Pregnant Female and the Gravid Uterus of Tryyon 



Bleekeri. 

 § 3, The Secretory Uterine Villi, or Trophonemata. 

 § 4. The Glands of the Uterine Villi, or Trophonenicata. 

 § 5. The Nature of the Secretion. 

 § 6. The Foetus of Trygon Bleekeri. 

 § 7. Recapitulation and Conclusion. 



§ 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 rea«h, and whose generous concessions to 

 the interests of science are an irreparable loss to naval exploration. 



Ann. & Mag. N. Hist. Ser. 6. Vol ix. 32 



