ME. S. nANLET ON THE LINNEAN MS. IN THE ' MUSEUM ULRICA.' 89 



D. ENTALis. D. subulato-cylindricura, subarcuatum. 

 The terminal details were not furnished, 

 JD. dentalium was the intended appellation. 



SERPULA. 



In the original version of the ' Museum Ulricae,' the members of this 

 genus are not separated from the Dentalia (a proof, among many others, 

 of the early date of this catalogue). Linnaeus, however, when revising 

 the transcript, had meditated the withdrawing of S. arenaria and lumbri- 

 calis, and constituted for them a nameless genus with the following 

 definition : — 



Testa tubulosa, isthmis coucamerata, dissepimentis integris, nee per- 

 foratis, s. communicantibus. 



This genus would have been the equivalent of the modern Vermetus. 



S. TRiauETRA. D. triquetrum, adhaerens. 



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. terctiusculum, depressuoi, rugosum. 



There was at first no name to the description of this shell ; but it was 

 added in the handwriting of Linnaeus. 



S. GLOMERATA. D. tercs glomeratum. 



The ' decussato-rugosa ' of the ' Systema ', a])plicable to the ' Vermetus 

 subcancellatus', the shell designed in that work, was not inserted. Gualtieri's 

 figure is that of Vermetus glomeratus, for the colouring of which ' alba ' 

 woidd be a most inappropriate term. 



S. LUMBRiCALis. D. spira divaricata terctiusculum, integrum. 



D'Arg. t. 29. f. L was an additional synonym. 



S. ARENARIA. D. tercs rectiusculum intestiniforme. 



Despite the name borrowed from Rumphius, the Vermetus gigas was the 

 object defined in the tenth edition of the 'Systema'. The absence from 

 the manuscript of the reference to Gualtieri's drawing of that shell, and 

 " rectiusculum " in the written diagnosis, confirms the conclusion pre- 

 viously arrived at, that the Septariu arenaria of authors was the species 

 intended in the ' Museum Ulricae ' : it was subsequently termed S. poly- 

 thalamia by Linnaius. The delusive " subangulata " of the supposititious 

 diagnosis was of course absent. 



The V. gigas was probably intended by the following unpublished de- 

 scription. 



D. INTESTINIFORME. jD. teres flexuosum intestiniforme. 



Testa rudis crassitie digiti et ultro, flexuosa vario modo in diversis, Integra, 

 intus laevis. 



S. ANGUINA. 



The two very dissimilar Siliquarice united under this appellation in the 

 ' Museum Ulricae,' were originally held distinct. The prickly variety was 

 the unpublished type, and was thus defined : — 



