Fig. 



25. H. APEHTA. — //. neritoides, naticoides, etc. — A single specimen 



found in Guernsey. Not uncommon in S. Eu. Our specimen 

 is foreign. 



26. H. tiMBiLiCATA, Mont. — H. nipestris, etc. — On perpendicular 



heights and under stones, C. 



27. H. PYGMyEA, Brap. — H. minuta, etc. — Common in damp places. 



28. H. LAMELLATA, Jeffreys. — H. Scarburgensis, semhmlnm. — Brit, and 



Germany, C. 



29. H. ACULEATA, MilUer. — II. spimdosa, etc. — Among Moss and 



stones, etc., C. General. 



