December 31. 
Price 5s. 
THE JOURNAL 
OF 
THE LINNEAN SOCIETY. 
Yol. XX. ZOOLOGY. No. 123. 
CONTENTS. 
I. Descriptions of fourteen new Species of Shells. 
G. B. Sowerby, F.L.S., E.Z.S. (Plate XXY.) ... 
Page 
By 
.... 39-5 
II. On some unrecorded Parasitic Acari found in Great 
Britain. By A. D. Michael, E.L.S., F.Z.S., E.B.M.S. 
(Plate XXYI.) 400 
III. On the Structure of the Retina of the Blowfly ( Calliphora 
erythrocephala) . By Benjamin Thompson Lowne, 
P.R.C.S., E.L.S., Hunterian Professor of Comparative 
Anatomy, Royal College of Surgeons. (Plate XXMTL) 40G 
IV. On the Structure and Development of the Ovaries aud 
their Appendages in the Blowfly ( Calliphora erythro- 
cepliala). By Benjamin Thompson Lowne, F.R.C.S., 
F.L.S., Hunterian Professor of Comparative Anatomy, 
Royal College of Surgeons. (Plate XXVIII.) 418 
Y. On the Deep-water Fauna of the Clyde Sea-area. By 
\V. E. Hoyle, M.A. (Oxon.), E.R.S.E., Keeper of 
the Manchester Museum. (Communicated by John 
Murray, LL.D., F.L.S., &c.) (With Map : Plate 
XXIX.) 442 
See Notice on last page of Wrapper. 
LONDON: 
SOLI) AT THE SOCIETY’S APARTMENTS, BURLINGTON HOUSE, 
PICCADILLY, W., 
AND BY 
LONGMANS, GREEN, AND CO., 
AND 
WILLIAMS AND NORGATE. 
1889. 
