SERPULA. 449 
Serpula bernritcularis. 
The few characteristics specified in the description cor- 
respond so fairly with the features of the worm-shell delineated 
by Ellis, the sole author referred to as illustrative, that the 
species was pictorially defined by that reference. It is the 
Serpula vermicularis of most British writers (Brit. Mar. Conch. 
f. 66), and the type, which is still preserved in the cabinet 
of Linneus, alone of its contents answers correctly to the 
definition. 
Serpula penis. 
All the referred-to engravings exhibit an Aspergillum, and 
almost all have formerly been regarded as representations of the 
A. Javanum of Lamarck. The relative proportion of the 
tubes of the fringe, the number and size of the pores upon the 
disk, the shape of the imbedded bivalves, were not of old so 
nicely scrutinised: the Monograph in Chenu’s ‘ Illustrations’ 
compels a closer examination. 
Of the illustrative figures that of Gualtier, a copy from which 
by Martini (Conch. Cab. i. f. 7) has been likewise cited in the 
revised ‘Systema,’ is decidedly the most characteristic, and 
clearly represents the A. Javanum of Chenu’s Monograph: the 
other synonyms have been also referred by that author to the 
same species, but the magnitude of the pores in Bonanni’s 
engraving, and the large tubes of the discal fringe, as repre- 
sented by Rumphius, seem to forbid such a conclusion. The 
former of these rude drawings, taken from an Amboyna shell, 
does not exhibit any discal fringe. 
No doubt need be entertained that the A. Javanum was the 
shell designed by Linneeus (who has signified his early posses- 
sion of an example), since the only specimens in his cabinet 
that answer to the definition precisely resemble Chenu’s figure 
of it (Conch. Ill. Asperg. pl. 2, f. 1, middle fig.). The presence 
of a broken-off disk of the A. incrassatum? of the same writer 
3M 
