Mr. J. Hogg's Catalogue of Sicilian Plants. 287 



Corystes cassivelaunus, Leach, Mai. pi. 1. 



C. dentatus, Edw. Crust, t. ii. p. 148 ; Desm. p. 86. pi. 3. f. 2. 



Cancer cassivelaunus, Penn. vol. iv. p. 9. pi. 7. 



" Found on the shore at Cushendall bay," Templeton. Marked as 

 " Irish " in Mr. J. V. Thompson's collection. This species is com- 

 monly found after storms on the sandy shores of the north and east 

 of Ireland. In the month of August 1836, a number of very small 

 specimens were dredged from a sandy bottom in the open sea oft 

 Dundrum, co. Down, by Mr. Hyndman and myself. The smaller the 

 individuals of this species, the antennae are the longer in proportion 

 to the size of the body : some of these with the shell or carapace 3 

 lines in length have the antennae 6 lines long — on this account the 

 young present a very singular and grotesque appearance : none of 

 those taken on this occasion had the carapace more than 6 lines in 

 length. In the stomach of a smooth dog-fish (Mustelus Itevis) cap- 

 tured in Belfast bay, I found a perfect adult specimen of this crab. 



Dr. J. Ii. Drummond informs me that he has frequently taken this 

 species at Bangor at neap-tides, when he detected it by the antennae 

 (which were always in contact with each other) being protruded 

 above the surface of the sand for nearly their whole length. Mr. R. 

 Ball, who has found these crabs in abundance at Youghal and Dublin, 

 has seen them shake themselves down in the sand so as to conceal 

 all bat the antennae as described. He is of opinion that the antennae 

 are not thus protruded for any special object, but simply that the 

 animal feels itself sufficiently concealed when the body is covered. 

 [To be continued.] 



XLI. — A Catalogue of Sicilian Plants ; with some remarks on 

 the Geography, Geology, and Vegetation of Sicily, By John 

 Hogg, Esq., M.A., F.L.S., F.C.P.S., &c. 



In this Catalogue, in addition to those plants which I ob- 

 served myself during the few weeks I remained in Sicily, many 

 others, that I could learn from good authority to be indige- 

 nous, or naturalized in the island, will be found. I have fol- 

 lowed the arrangement and the genera adopted by Persoon in 

 his ' Synopsis Plantarum' (edit. 1805-7), as that is by far the 

 most convenient and portable manual for a traveller, and have 

 also referred to the works of other authors for the descriptions 

 of such species as are new, and are not given in Persoon's two 

 volumes. 



The orders which contain the most numerous species are, 

 Ranunculacece, Cruciferce, Caryophylleae, Leguminosae, Umbelli- 

 ferce, Composites, Labiata and Graminece. 



There are twenty-five plants whose specific name, Siculus, 

 is taken from the island ; viz. one for each of the following 

 genera, Valeriana, Poa, Festuca, Scabiosa, Convolvulus, Atha- 

 mantha, Slum, Linum, Allium, Erica, Saponaria, Dianthus, Si- 



