He has, wisely we think, included in his scope some forms, such as Littorina neritoides, Otina otis, and Onchidiella celtica, that dwell just above high-water mark and are apt to be omitted by ...

A ‘PARTHENITA’ containing furcocerous and tailless stages of a gymnophalline cercaria was found in the hæmolymph spaces of the digestive gland, gonad and gonoduct of the gastropod Littorina ...