Journal of the Proceedings of the Linnean Society - Vol. 3

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Journal of the Proceedings of the Linnean?by Various

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Title: Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology
Author: Various
Release Date: March 6, 2007 [EBook #20750]
Language: English
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JOURNAL
OF
THE PROCEEDINGS
OF
THE LINNEAN SOCIETY.
ZOOLOGY.
VOL. III.

LONDON: LONGMAN, BROWN, GREEN, LONGMANS & ROBERTS, AND WILLIAMS AND NORGATE. 1859.

PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET.

LIST OF PAPERS.
Page BAIKIE, Dr.
Extract of a Letter from Dr. Baikie to Sir John Richardson, M.D., C.B., F.R. & L.S., dated 29th October, 1857, Rabba, on the Qworra 76
BATE, C. SPENCE, Esq., F.L.S.
On the Importance of an Examination of the Structure of the Integument of Crustacea in the determination of doubtful Species.--Application to the genus Galathea, with the Description of a New Species of that Genus 1
BELL, THOMAS, Esq., P.L.S.
Description of a new Genus of Crustacea, of the Family Pinnotherid?; in which the fifth pair of legs are reduced to an almost imperceptible rudiment 27
DARWIN, CHARLES, Esq., F.R.S., F.L.S., & F.G.S., and WALLACE, ALFRED R., Esq.
On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection 45
HANBURY, DANIEL, Esq., F.L.S.
Note on Two Insect-products from Persia 178
HIGGINS, Rev. HENRY.
Death of the Common Hive Bee; supposed to be occasioned by a parasitic Fungus 29
HUXLEY, T. H., Esq., F.R.S., Professor of Natural History, Government School of Mines.
On some points in the Anatomy of Nautilus Pompilius 36
KNOX, R., Esq., M.D., F.R.S.E.
Contributions to the Anatomy and Natural History of the Cetacea. 63
SMITH, FREDERICK, Esq., Assistant in the Zoological Department in the British Museum.
Catalogue of Hymenopterous Insects collected at Celebes by Mr. A. R. Wallace 4
Catalogue of Hymenopterous Insects collected by Mr. A. R. Wallace at the Islands of Aru and Key 132
WALKER, FRANCIS, Esq., F.L.S.
Catalogue of the Dipterous Insects collected in the Aru Islands by Mr. A. R. Wallace, with Descriptions of New Species 77
Catalogue of the Heterocerous Lepidoptera collected at Singapore by Mr. A. R. Wallace, with Descriptions of New Species 183
Catalogue of the Heterocerous Lepidopterous Insects collected at Malacca by Mr. A. R. Wallace, with Descriptions of New Species 196
WALLACE, ALFRED R., Esq., and DARWIN, CHARLES Esq., F.R.S., F.L.S., & F.G.S.
On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection 45
WASHINGTON, Captain.
Natural-History Extracts from the Journal of Captain Denham, H.M. Surveying Vessel 'Herald,' 1857 32
WETHERELL, JOHN W., Esq.
Notice of the occurrence of recent Worm Tracks in the Upper Part of the London Clay Formation near Highgate 31
INDEX 199

JOURNAL OF THE PROCEEDINGS
OF THE
LINNEAN SOCIETY OF LONDON.
On the Importance of an Examination of the Structure of the Integument of Crustacea in the determination of doubtful Species.--Application to the genus Galathea, with the Description of a New Species of that Genus. By SPENCE BATE, Esq., F.L.S.
[Read January 21, 1858.]
Of the various genera of Decapod Crustacea none are more interesting, or more difficult of description, than those which constitute the family Galathead?.
The interest attaching to these forms arises from the intermediate position which they occupy in the natural arrangement of the class, their structure placing them between the Macrura and Brachyura; in accordance with which we find that, whilst Professor M.-Edwards classes them among the Macrura, Professor Bell, in his work on the British Crustacea, places them (more correctly, as we think) in the intermediate group of Anomura.
This opinion is fully borne out both in the development of the animals and in their structure in the adult state.
The early form of the larva bears, anteriorly, a resemblance to the Brachyural type, whilst the caudal appendages assimilate to those of the Macrura. The same conditions obtain in the young of Anomura. At the time of birth, the larva, like that of the Brachyura, has only the two gnathopoda developed, whilst the termination of the tail is like that of a fish, as in the Macrura. In the adult, the internal antenn? possess short flagella and complementary appendages, such as exist in the order Brachyura, whilst the external antenn? have the long and slender flagella proper to the Macrura. The scale, however, commonly appended to the external antenn? in the latter order is wanting, a circumstance which exhibits a relation to the Brachyura.
An examination of the legs shows that the cox? are fused with the thorax, as in the