3. P. erinaceus, Poir.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
By far the greater number of the living marine species included in these tables are still inhabitants of the British seas; but even these differ considerably in their relative abundance, some of the commonest of the Crag shells being now extremely scarce; as, for example, Buccinopsis Dalei; and others, rarely met with in a fossil state, being now very common, as Murex erinaceus and Cardium echinatum.
"The Antiquity of Man"
Charles Lyell
The teeth in some degree resemble erinaceus, the molars and premolars especially, but the number in all is greater, there being forty-four, or eight more.
"Natural History of the Mammalia of India and Ceylon"
Robert A. Sterndale