CONTENTS. Vv 
XXVII. Description d’un nouveau Genre de Mollusques de la Classe des Gastéropodes 
Pectinibranches. Par E. Ruppert, M.D., Memb. Ect. L.S. & Z.8. page 259 
XXVIII. On Clavagella. By W. J. Broverir, Esqg., Vice-President of the Geological 
and Zoological Societies, F.R.S., L.S.,§e. 2 . . . rere 20L 
XXIX. On the Anatomy of Clavagella, Lam. By Ricuarp Owen, 2 ales E.R.S. & Z.S., 
Assistant Conservator of the Museum of the Royal College of Surgeons in Lon- 
ag Fo I PoC hay a 1 ee 
XXX. On Nycteribia, a Genus of Wingless Insects. By J. O. Wesrwoop, Esq., 
F.L.S., &c. Communicated by the Secretary. . . . toate, Pie, Cake 
XXXI. Some Account of Macropus Parryi, @ hitherto undescribed ee of Kangaroo 
from New South Wales. By E. T. Bennerr, Esq., F.L.S., Sec. ZS... 295 
XXXII. On the Genus Chama, Brug., with Descriptions of some Species apparently not 
hitherto characterized. By W.J. Bropertr, Esq., Vice-President of the Geolo- 
gical and Zoological Societies, F.R.S., L.S., 8c. . . . - = 30l 
XXXIII. Characters and Description of a new Genus of the Family Melolonthide. By 
Joun Curtis, Esq., F.L.S., §c. Communicated by the Secretary . . . 307 
XXXIV. On a species of Moth found inhabiting the Galls of a Plant near to Monte Video. 
By Joun Curtis, Esq., F.L.S., &c. Communicated by the Secretary . . 311 
XXXV. Description of a Microscopic Entozoon infesting the Muscles of the Human Body. 
By Ricuarp Owen, Esq., F.R.S. & Z.S8., Assistant Conservator of the Museum 
of the Royal College of Surgeons im London . . . 2 apie tote 
XXXVI. On the Anatomy of Linguatula Tenioides, Cuv. By R Ricwarp Owen, Esq., 
F-R.S. & Z.8., Assistant Conservator of the Museum of the Bea College of Sur- 
geonsin London. . . . . . : o See eth ine 
XXXVII. Additional Remarks on the Genus ee with some Account of a second Spe- 
cies referrible to it. By E. T. Bennert, Esq. F.L.S., Sec.Z.8. . . . 33l 
XXXVIII. Observations on the Genus Cancer of Dr. Leach (Platycarcinus, Latr.,), with 
Descriptions of three new Species. ie Tuomas BELL, es F.R.S., L.S., G.S., 
opal i) ans NA Lee rae NEE: lee, 
XXXIX. On the Osteology - the hte and Gee Utan. By Ricuarp Owen, 
Esq., F.R.S. & Z.S., Assistant Conservator of the Museum ae the Royal College of 
Surgeons in London. . . . 2 basu Welt ae, combs 
XL. On the Anatomy of Distoma ee Rud. "By R Ricuarp Owen, Esq., F.R.S. & 
Z.S., Assistant Conservator e the Museum of the Ae pens of Surgeons in 
London. ies eee tel: : : “eee. eres 
XLI. Description of a new nail of Feceyomig 4 Tenia een! Owen. By Ricuarp 
Owen, Esq., F.R.S. & Z.S., Assistant Conservator of the Museum of the Royal 
College of Surgeomsan London . . 1. . - ss + © + 6 se S85 
