288 JOURNAL OF CONCHOI.OGY, VOL. ID, NO. 9, JANUARY, I903. 



Var. minor Moq. — Very small specimens are rather frequent on 

 the cliffs and downs by the sea. The smallest measurements we have 

 taken are (Guernsey) 16-5 mm. by 12-5 mm., and (Alderney) 16-5 mm. 

 by 14 mm. 



Var. conica Pascal. — Bon Repos, Guernsey ; the specimens are 

 yellow 00300, and red 12345; one measures 16 mm. each way. 

 Alderney, yellow 00000. 



Var. roseo-labiata Tayl. — Fort Uoyle, Guernsey. Alderney, on 

 the cliffs. 



Var. bimarginata Pic. — Pleinmont and Jerbourg, Guernsey. 

 Also in Alderney and Sark. 



Var. carnea R. & T. — Vazon, Guernsey, a single specimen with 

 one slender band of darker shade than the ground colour. 



Var. rubella Moq. — Common. The following band-formulse 

 are from Guernsey: 12345, 10345, 00345, 00300, 00000, 123(45), 

 (i23)(45), (12)3(45), 0023300, 0033O0. In 00300 there is sometimes a 

 whitish band below the black one. From Alderney; 12345, 00300, 

 00000. From Sark : 00300 with the other four bands translucent, 

 (12345), 00(34)0. 



Var. libellula Risso. — Common. The following forms are from 

 Guernsey: 12345, 12345, 10345, 02345, 00345, 00305, 02300,00300, 

 00000, 123(45), (12)3(45), i(23)(45), (i23)(45), 1(23)45, 1(2345), 

 (12345), 003340- From Alderney: 00300, 00000, 12345, 123(45). 

 The breadth of the band in 00300 varies from i to 3 mm. 



Var. olivacea Gass. — Very rare, Moulin Huet, Guernsey; for- 

 mula 00000. 



Var. petiveria Moq. — Guernsey, 12345, 00300. Sark. 



Var. castanea Moq. — Bordeaux Harbour, one specimen, 00000. 

 [H. hortensis Miill. — This has been recorded for Guernsey by 

 Messrs. Cooke & Gwatkin, but we believe erroneously, as only dead 

 shells were discovered. During a residence of several years in Guern- 

 sey, one of us searched for this species in vain ; but dead shells of 

 H. neiiioralis var. viinor with a bleached mouth, bearing a striking 

 resemblance to H. hortensis, were occasionally found]. 



H. hispida L. — Ubiquitous. A Herm form has the suture deeply 

 channelled (Cooke & Gwatkin). 



Var. subglobosa Jeffr. — Fermain Bay, Guernsey (Cooke & 

 Gwatkin). 



Var. conica Jeffr. — St. Andrew's and Grande Mare, Guernsey. 

 Apparently the prevailing form in Alderney. 



Var. albida Jeffr. — -St. Andrew's, Guernsey, one specimen with 

 the type. 



H. concinna Jeffr. — Jersey, dead only, with Cydostoma (Duprey). 



