Invertebrata. Zoological Collections. 309 



Mr J. V. Thompson. Dr M'Culloch has also attributed it to the latter 

 cause ; and states that every marine animal that he has examined is lumi- 

 nous. Assuming the observations of M. Bory de St Vincent and those of 

 Dr M'Culloch to be equally correct in the instances which fell under their 

 notice, it is vi^orthy of inquiry whether any, and what, differences exist in 

 the luminosity of the ocean, when it is occasioned by marine animals, or 

 when it is owing to other causes. — Proceedings of the Zoological Society^ 



Thompson's Zoological Researches. — We lately mentioned, that Mr 

 Thompson was delaynig the publication of his Zoological Researches and 

 Illustrations, until he had secured a sufficient number of subscribers to 

 indemnify him from loss. We have not yet learned whether the work will 

 be continued; but we think that the modest desire for 150 subscribers to 

 such a work can never be expressed in this country in vain. Lest, however, 

 there should be any doubt as to the continued importance of the work, we 

 give the following list of memoirs, which will appear in future numbers, if 

 the publication be continued : — 



1. Structure, Natural History, and Metamorphosis of the Caligi of Ento- 

 mostraca. 



2. Double Metamorphosis discovered in the Brachyura of the Crustacea. 



3. Metamorphosis discovered in one of the marine Univalve Testacea. 



4. Metamorphosis of the second type of the Cirripedes, or Lepas, their 

 beautiful and singular Larva — totally different from that of the Balani. 



5. Extraordinary structure and Metamorphosis of some Epizoaria, new 

 and singular animals of this class. 



6. Metamorphosis in the Paguri of the Crustacea, symmetry of the young 

 of these animals, 



7. Single Metamorphosis in the Macroura, their Larva, with its changes 

 of a totally different kind from those of the Brachyura, exemplifted in the 

 Shrimp and Prawn. 



8. Detail of the curious structure of several species of the newly instituted 

 genus Condylura. (Cancer. Scorpionurus of Montagu.) 



9. Animals of some Alcyonii of the newly instituted genus Sarcodendron, 

 with descriptions of four new species and their animals. 



10. Animals of some CeUaria, Tubuliporse and Flustracice, proved to be 

 Polyzoae. 



11. Natural History, detailed structure, and metamorphoses of the genus 

 Artemis of the Entomostraca, the only living type of the Entomolithi 

 paradoxi. 



12. Details of several genera of the compound Ascidise found in the 

 Harbour of Cove. 



13. Structure and Metamorphosis of the genus Porcellana of the Crustacea, 

 with its new and singular Larva. 



14. Structure and Metamorphosis of some of the Marine Cyclopes, 

 singular varieties in the organization of different genera, &c. 



15. Metamorphosis in Gegarcinus Hydrodomus, and other gepera of the 

 Land Crabs. 



16. Discovery of the Ova in several indigenous Spongia, anterior to Dr 

 Grant. 



17. Structure of the Sertulariae and their animal inhabitant, exemplified 

 in the indigenous species of the genus Companularia, with new species, 



18. Natural History and Metamorphosis in Pinnotheres, its Larva a new 

 type of Zoea. 



