132 COLLINGE : SOME NOTES ON THE GENUS PRISMA, SIMROTH. 

 EXPLANATION OF PLATE IX. 



Fig. I. Prisma sinitlii, n. sp. Right lateral view. x i|. 



Fig. 2. ,, „ „ Ventral view. x i| 



Fig. 3. ,, ,, „ Diagrammatic transverse section. 



Fig. 4. Prisma prisiuatica, Tiip.-Cun. Right lateral view. x i^ 



Fig. S- n n >i Ventral view. x I5. 



Fig. 6. ,, ,, ,, Diagrammatic transverse section. 



Fig. 7. Prisma hcyncmaiiiii, S'unr. Right lateral view. x ih 



Fig. 8. ,, „ „ Ventral view. x li 



Fig. 9. „ „ ,,. Portion of the noium, nuich 



enlarged. 



FURTHER NOTES ON AMALIA OARINATA, RISSO. 



By WALTER E. COLLINGE, B Sc. 



In response to my appeal in the June issue of this Journal,''' I have 

 received numerous examples of Amalia soive7'byi, Fer., from all parts 

 of the Briti.sh Isles, particularly interesting amongst which are some 

 from Ireland. 



When I wrote my previous note, I had for the moment over- 

 looked the fact that Dr. Scharff'"-^' had recorded A. rarinafa, Risso, 

 from Ireland, the specimens being verified by Dr. Simroth. I have 

 not seen Dr. Scharff's specimens, but I cannot agree with him in 

 regarding Risso's species as synonymous with the A. soirprJ)yi of 

 Ferussac. An example of this last mentioned species referable to the 

 variety nif/rescens, Ckll., from Woodenbridge, Co. Wicklow, and two 

 examples of the ordinary form from Piperstown, Co. Louth, received 

 from Dr. .Scharff, are certainly quite unlike examples of A. rarinafa, 

 Risso, which I have in my collection from Nizza, Northern Italy, and 

 from Algiers, as also are many other specimens which I have in recent 

 years examined from various Irish localities. Further they are very 

 distinct from the two Amalias which I recorded in my previous note, 

 which latter agree very closely with the Italian examples of A. rarinafa, 

 but much less so with the Algerian specimens. 



I have now to record two Amalias from Kingstown, Co. Dublin, 

 which leave no doubt in my mind that A. rarinafa, Risso, certainly 

 occurs in Ireland, in addition to A. somerhj/i, Fer. These two 

 specimens are intermediate, in colouring and markings, between the 

 Italian and Algerian specimens mentioned above, and cannot in my 

 opinion, be referred to Ferussac's species. 



1. See ante p. 6^. 



2. Trans. Roy. Dublin Soc, 1891, vol.iv. (ser ii), p. 531, 



