502 



Miscellaneous. 



carried ova. I think it would be as well to make a list with all the 

 data, and by this means we might, were the observations carried out 

 at different parts of the coast, fill up a hiatus in the ceconomy of the 

 Crustacea, and that not the least interesting : the depth of water should 

 also be recorded. The list I propose is of such as are taken not 

 carrying ova, and this, with the table now sent you, will form a basis 

 for further calculations. 



Since my notice of Achceus Cranchii, in the July number of the 

 ' Annals,' I have been fortunate enough to procure two more speci- 

 mens ; still they must not be considered as other^vise than rare on this 

 coast. 



I am. Gentlemen, yours very obediently, 



William Thompson. 



Species. 

 Cancer Pagurus. 



Carcinus Mcenas 



Corystes Cassivelaunus. 



Date when found 

 carrjing ova. 



March 8,1850. 



March 11, 1850. 



May 28, 1851. 

 March 16, 1850. 



April 27, 1850. 



Crangon bispinosus ... Feb. 11, 1851. 



C. vulgaris Jan. 29,Feb. 13, 



April 13, 1851. 

 Galathea squamifera... March 2.9, 1850. 

 G. strigosa Nov. 7.1851. 



Hippolyte Cranchii ... May24, Julv 13, 

 Aug. 2, 1851. 



H.varians May 24,1851. 



Homarus vulgaris Feb. 20, 1851. 



Hyas araneus Jan. 18, 1851. 



H. coarctatus Feb.l5,20&27, 



1851. 

 Pagurus Bernhardus... Jan. 7. 1850. 



P. cuanensis May 24,1851. 



P. Hyndmanni July 13,1851. 



P. Prideauxii Jan. 11, Feb. 21, 



1851. 

 Pilumnus hirtellus May 30,1851. 



Pinnotheres pisum April 27, July 23, 



1850. 

 Pisa tetraodon Mav 27,1851. 



General Remarks. 



Caught in a crab-pot : ova 

 orange colour : the carapace 

 was 3 inches wide. 



Ova of an orange-brown. 



I found seven females thrown 

 up March 16, 1850; of these 

 only four earned spawn. 



The ova is of a bright sea-green. 

 Sjiecimens taken Feb. 23 and 

 May 24 had no spawn. 



Caught in a lobster-pot : the 

 ova are very small, and of a 

 beautiful garnet colour. 



Ova of a reddish colour. 



Ova of a reddish colour. 



Ova of a dark brown. 



Ova of a rich orange colour and 

 much developed. 



Out of eighteen specimens 

 eleven carried ova, which are 

 of a dark purple nearly ap- 

 proaching to black. 



Three out of ten carried spawn 

 of a rich orange-brown colour. 



Ova black. 



Ova orange. 



Ova very small and of a bright 

 orange colour. 

 Ova of an orange coloiu-. 



Ova small and of a bright red. 

 Not sufficient in quan ity to 

 force back the abdomen. 



