Echinoidea: with bilateral symmetry. Irregularia: Volume 2 by Heinke A.G. Schultz

By Heinke A.G. Schultz

This booklet is the second one quantity of 2 books approximately sea urchins (echinoids) considering the fact that 1953 (Th. Mortensen). The targeted and colored illustrated descriptions allow the reader to spot all species dwelling this present day in our oceans. fresh medical searchings are incorporated. quantity II. describes the Irregularia with bilateral symmetry, together with the well-known "sand funds" and "heart urchins", dwelling ordinarily roughly deeply burrowed within the substrat.

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