Psammechinus

Abstract.The present paper deals with the echinoid fauna of the Belpberg Beds, a lithostratigraphic unit in the Upper Marine… Expand

The movement of any short length of the tail of a spermatozoon of Psammechinus mtUaris and the characteristic changes which it… Expand

When the cloned h22 histone gene repeat unit of the sea urchin Psammechinus miliaris is injected into the frog oocyte nucleus… Expand

Abstract The production of fertilisation acid in eggs of Psammechinus miliaris, fertilised with sperm, was studied under pH clamp… Expand

1. The proportion of thiol groups in the total thiol+disulphide of histone extracts from fertilized eggs from Echinus and… Expand

Abstract Ribonucleoprotein (RNP) particles were purified in a highly active state from a number of tissues of the rat. Particle… Expand

Abstract 1. 1. The existence and duration of a latent period of fertilization has been established by a double interruption… Expand

The vertical distribution of plankton organisms and their eggs depends largely on their surface area and density (Eyden, 1923… Expand

With Cartesian diver micro-respiration technique the temperature characteristics of the respiration of Psammmechinus miliaris… Expand

In Cartesian diver experiments on the oxygen consumption of oocytes, unfertilized eggs and fertilized eggs from the sea-urchin… Expand