246 Mr. W. Thompson's Additions to the Fauna of Ireland. 



was several fathoms in depth in Belfast bay in August 1846 by Mr. 

 R. Patterson, was brought to me alive. Its colour was pale brown 

 with dark brown markings ; its motions when undisturbed were lively 

 — when touched, it rolled itself into a ball. 



My specimen, which on comparison with the original one from 

 " Devon " (where only it has yet been noticed) in the British Mu- 

 seum, must be considered this species, at the same time cannot be said 

 to differ from S. curtum (a view in which Mr. Adam White coincides) : 

 — it is intermediate in size, form, &c. between the individual ex- 

 amples of the two species in that collection. M. Edwards offers 

 some remarks on the difficulty of distinguishing S. curtum from 

 Leach's description (Hist. Crust, vol. hi. p. 209). 



28. Sphceroma Griffithsii, Leach MSS. ? Brit. Museum Catal. 

 p. 103. 

 Three Sphceroma obtained in Belfast bay and Strangford lough 

 (1835, &c.) are similar to the two poor original specimens from Tor- 

 bay, so named in the British Museum, excepting in the caudal plate 

 being rather more rounded in my specimens *. 



29. Cymodocea truncata, Mont, (sp.) ; Edw. vol. iii. p. 214. 



Two examples procured between tide-marks at Cultra and Rock- 

 port, Belfast bay, Mr. Hyndman and W. T., 1837. Leach remarks 

 that the species is found amongst Fuci and is very rare : Edin. Ency. 

 vii. 433. Mine agree with his specimen from Devon (the only 

 known locality) in the British Museum. 



30. Cirolana hirtipes, Edw. vol. iii. p. 236. pi. 31. f. 25. 

 My specimens are similar to those so named in the British Mu- 

 seum (but whence these were obtained is unknown), and agree with 

 the description and figure of M. Edwards, whose only locality indi- 

 cated for the species is the Cape of Good Hope ! The first individuals 

 which came under my notice were found in the midst of a mass of 

 ova in a boiled cod-fish sent me from Portpatrick about ten years 

 since by Lieut. Little, R.N. In September 1841, several found 

 adhering to a skate {Rata batis) taken in Belfast bay, were brought 

 to me by Mr. Hyndman. I have also procured it on the gills and 

 once alive in the stomach of a holibut {Hippoglossus) from the last- 

 named locality. It was enumerated in my * Report ' under the name 

 of Cirolana Cranchii, the only known British form of the genus. 



31. Eury dice pulchra, Leach; Edw. vol. iii. p. 238. 

 This pretty species has been taken at Larne by Mr. R. Patterson 

 (1838) and at Carrickfergus, between tide-marks, by Mr. Hyndman 

 (March and April). Bantham, Devon, the original locality (Leach, 

 Linn. Trans, xi. 370), appears to be the only one yet noticed for 

 E. pulchra. 



* See Guerin, Iconog. Regne Anim. Crust, texte descriptif, p. 27, for 

 remarks on Sphceroma serratum, Fabr. (sp.), and S. globator, Pall, (sp.) as 

 two distinct species. 



