240 MESSRS. MIVART AND MURIE ON THE [Feb. 28, 
fissure is extended much further towards the anterior extremity of 
the sternum, and so increased in width as to leave the body of the 
sternum very narrow, and to give it altogether a much more elon- 
gated outline. These peculiarities will be at once evident upon exa- 
mination of the accompanying figures, which represent the sternum 
of Phlogenas crinigera (fig. | from above, and fig. 2 from one side). 
On one side it will be noticed that the small inner fissure has closed 
up, leaving only a small foramen. This is the normal form in the 
more typical Columba; but in Treron, Goura, and Carpophaga, as 
far as I am acquainted with the structure of their forms, the fissures 
remain permanently open. 
Fig. 2. 
Sternum of Phlogenas crinigera. 
5. OBSERVATIONS ON THE ANATOMY OF NYCTICEBUS TARDI- 
Grapus. By Sr. Georce Mivart, F.L.S., Lecrurer on 
ComPaRATIVE ANATOMY AT St. Mary’s HospiTaL; anD 
James Murir, M.D., rormerzty ASSISTANT IN THE Mvu- 
SEUM OF THE Roya COLLEGE OF SurGEONS, Lonpon. 
The careful and elaborate joint memoir on the genus Stenops, 
by Professors J. L. C. Schroeder Van der Kolk* and W. Vrolik, 
* “Recherches d’Anatomie comparée sur le genre Stenops d’llliger,” in 
‘ Bijdragen tot de Dierkunde, uitgegeven door het Koninklijk zoologisch Genoot- 
schap.’ Erste Deel. Amsterdam, 1848-1854. 
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