Septembers. ¥% ?l . oqAooA^i£ J^,- /Xk / Price Ss* 



THE JOURNAL 



or 



THE LINNEAN SOCIETY. 



Vol. XV. ZOOLOGY. No. 83. 



CONTENTS. 



Page 



I. On an unusual Form of the Genus Hemipholis, Agass. 

 By Prof. P. M. Duncan, F.K.S., F.L.S. &c. (Plate 

 VI.) 138 



II. On the Tusks of the Fossil Walrus found in the Eed 

 Crag of Suffolk. By E. Eat Lankester, M.A., 

 F.B.S., F.L.S., Professor of Zoology and Compa- 

 rative Anatomy in University College, London. 

 (Abstract.) 144 



III. On the Specific Identity of Scomber punctatus, Couch, 

 with S. scomber, Linn. By Francis Day, F.L.S. 



(Plate VII.) 146 



IV. On two Cases of Incorporation by Sponges of Spicules 

 foreign to them. By Stuart O. Ridley, F.L.S. , 

 Assistant in the Zoological Department, British 

 Museum 149 



V. On supposed Stridulating- Organs of Steatoda guttata, 

 Wider., and LinypMa tenebricola, Wider. By F. 

 Maule Campbell, F.L.S., F.Z.S., F.E.M.S. (With 

 2 woodcuts.) , . . , 152 



VI. On certain Glands in the Maxillae of Tegenaria domes- 

 tica, Black wall. By F. Maule Campbell, F.L.S., 



F.Z.S., F.E.M.S. (With 5 woodcuts.) 155 



VII. Notes on Aplysia dactylomela. By G. E. Dobson, 



M.A., M.B., F.L.S., &c. (With 2 woodcuts.) 159 



VIII. On the Natural Classification of Gasteropoda. — Part I. 



By Dr. J. D. Macdonald, E.N., F.E.S 161 



IX. Observations on Ants, Bees, and Wasps ; with a De- 

 scription of a new Species of Honey- Ant. — Part VII. 

 Ants. By Sir John Lubbock, Bart., M.P., F.E.S., 

 F.L.S., D'.C.L., LL.D., Vice-Chancellor of the Uni- 

 versity of London. (Plate VIII. and 5 woodcuts.) 167 



LONDON: 

 SOLD AT THE SOCIETY'S APARTMENTS, BURLINGTON HOUSE, 



AND BY 



LONGMANS, GEEEN, EEADEE, AND DTEE, 



AND 



WILLIAMS AND NOEGATE. 



1880. 



