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PLATE XVIII.
Sciurus blandfordi, Blyth; male frds natural size.
PLATE XIX.
Sciurus gordoni, Anderson; male frds natural size.
PLATE XX.
Sciurus sladeni, Anderson; male frds natural size.
PLATE XXI.
Sciurus alstoni, Anderson; ftli natural size.
PLATE XXII.
Pteromys yunnanensisy Anderson ; male f th. natural size t>
PLATE XXIII.
Pteromys (Sciuropterus) pearsoni, Gray ; f natural size.
PLATE XXIV.
Skulls of species of Manis of natural dimensions :^~v
Pig. 1. Manis pendactylas Linn., an upper view.
,, 2. ,, „ palatal surface.
„ 3. The Manis auritay Hodgson, an upper view.
„ 4. „ „ ,, jj palatal surface.
,, 5. Ma/nis java/nicay Desm., an Upper view.
, , 6. yy yy y, palatäl SUrfaCC.
„ 7. Upper surface in outline of the skull of the type of M. leptura, Blyth, hut
= M. java/nicay Hesm.
„ 8. Upper surface in outline of the typical cranium of the M. leucura, Blyth,
also = M. java/nicay Desm.
PLATE XXV.
The Susu or Gangetic Dolphin Platanista gangeiicdy Lebeck. Drawing taken
from photograph, the reduction being about -nrth the natural dimension
of the animal.
Aperture of the blow-hole of the same specimen; •§ natural size.
Bight ear-slit or external auditory foramen of Platanista, enlarged twice
natural size.
The short-snouted Orcella, O. brevirdstris, Owen.
Deduced outline of the head of O. hrevirosiris viewed from above, showing
the blow-hole placed slightly to the left of the median line; also the
lateral prominences of the eyes.
PLATE XXVa.
Dolphin of the Irawady, Orcella jhmmalis, Anderson. Drawing taken
of a male specimen captured near Bhamô, June 1876. Deduced ^th
natural size.
A bird’s eye or dorsal view of the same animal, also ^th natural size.
A transverse section through the trunk of the male O. jluminaliSy cut in a
vertical line with the pelvic bones. Deduced.
The lettering applies as follows I., mesial line of back ; s., skin ;
b.y blubber; s. p., spinous process of vertebra ; c., centrum; t., transverse
process ; m., muscles of upper and lower parts of body ; pp.*, right and
left pelvic bones ; r., rectum cut through ; c. c. c. c*, commencement of the
right and left corpora cavernosa ; C. s., corpus spongiosum near commencement
; T.p.y the retractor penis muscle cut across ; fibrous connections
of the corpora cavernosa and attached to the pelvic bones.
The right pelvic bone of Orcella jhJ/minalis viewed on its under aspect and
^ drawn of natural size : a., anterior end of bone; p., posterior extremity;
i.y inferior aspect ; a.p., place of attachment of penis.
PLATE XXVI.
A front or ventral view of the opened cavities of the stomach of Platanista ;
the passages between being indicated by curved bristles i ce., oesophagus ;
I, I I , I I I , IV y cavities in sequence ; d., duodenum. Deduced £th natural
size.
A «mall portion of the mucous membrane of the first gastric chamber of
the foetal Platanista. Of natural size, showing the convoluted mucous
folds.