Crania synonyms

- Diagram of nervous system of Crania; from the dorsal side.

In Crania, where only indications of the lip-sinus occur, there are two other closed spaces.

The above account applies more particularly to Crania, but in the main it is applicable to the other Inarticulata which have been investigated.

These spaces are as follows: - (i.) the great arm-sinus; (ii.) the small arm-sinus together with the central sinus and the peri-oesophageal sinus, and in Discinisca and Lingula, and, to a less extent, in Crania, the lip-sinus; (iii.) certain portions of the general body cavity which in Crania are separated off and contain muscles, &c.; (iv.) the cavity of the stalk when such exists.

His most important anthropological work was his description of sixty human crania published originally in fasciculi under the title Collectionis suae craniorum diversarum gentium illustratae decades (Gottingen, 1790-1828).