280 Mr. P. H. Gosse on new species of British Actiniae. 



guished naturalist, in adopting the '^ Crangon bispinosus " and 

 " trispinosus '' of Mr. Hailstone, should have omitted all reference 

 to a form so very remarkable and so carefully detailed as Mr. 

 Hailstone^s ^^ Hippolyte ruhra.'^ 



In the belief that my Channel Island Crustacean is a new and 

 undescribed species, I propose to bestow upon it the name of 

 Alpheus affinis ; thereby indicating the close relationship which 

 it bears to the three other European species already referred to. 



1. Alpheus affinis, n&tuval size. 



2. Enlarged view of front of carapace, showing supra-orbital vaults, inser- 



tion of antennae, &c. 



3. Front of carapace still further enlarged, showing beaked rostrum and 



spinous armature of supra-orbital vaults. 



4. Enlarged view of larger pincer. 



5. Enlarged view of lesser pincer. 



6. Tail. 



XXVIII. — Descriptions of three new species of British Actiniae. 

 By Philip H. Gosse, A.L.S. 



Actinia aurora. The Orange-tentacled Anemone. 



Body in contraction a hemispherical button ^ inch in diameter, 

 of an umber-brown hue, occasionally varying to olive, marked 

 with narrow longitudinal pale bands, which become wider and 

 more conspicuous towards the base, and obsolescent at the discal 

 margin, where the brown hue is deepest. The pale bands are 

 separated by about four times their own width, but have at the 

 base several short and vanishing pale lines between them. 



The exterior of the body is studded with numerous pale oblong 

 sucking-glands, not prominent, to which grains of sand, frag- 

 ments of shell, &c. adhere strongly. 



