D. dentalium was the intended appellation.
SERPULA.
In the original version of the 'Museum Ulricæ,' the members of this genus are not separated from the Dentalia (a proof, among many others, of the early date of this catalogue). Linnæus, however, when revising the transcript, had meditated the withdrawing of S. arenaria and lumbricalis, and constituted for them a nameless genus with the following definition:—
Testa tubulosa, isthmis concamerata, dissepimentis integris, nec perforatis, s. communicantibus.
This genus would have been the equivalent of the modern Vermetus.
S. triquetra. D. triquetrum, adhærens.
The reference to Gualtieri (whose figure was somewhat uncertain, yet probably designed for Vermilia triquetra) was queried. The proposed name was D. parasiticum.
S. contortuplicata. D. teretiusculum, depressum, rugosum.
There was at first no name to the description of this shell; but it was added in the handwriting of Linnæus.
S. glomerata. D. teres glomeratum.