Bulletin of Zoological Nomenclature 49(2) June 1992 145 and taxonomically distinct' (para. 6 of the application). This is, in fact, very unlikely. The type genera, Clavus Montfort, 1810 and Drillia Gray, 1838 (p. 28), of the two nominal subfamilies have type species {Clavus flammulatus Montfort, 1810 and Drillia umhilicata Gray, 1838 respectively) which are similar and differentiable at the generic level only. Not only are their shells alike but their radular structure is of the same type (the latter is common to all the species in this grouping as now understood). In addition, although there is little available anatomical data, in those cases where it is known there is a very similaf poison gland and bulb. Thus, although future research might well demonstrate differences, there is little to suggest the likelihood of there being two significantly different groups, at least at the subfamily level. It may also be noted that in the older literature, such as H.& A. Adams (1853), the taxa concerned were often included in the one genus Drillia. To make the name clavusinae available would be an artificial solution to the homonymy problem (if in fact there is a problem) and could itself be a cause of instability. I therefore oppose the application. Additional references Adams, H. & A. 1853. The genera of Recent Mollusca, vol. 1, part 3. Pp. 65-96. Van Voorst, London. Gray, J.E. 1838. On some new species of quadrupeds and shells. Annals of Natural History; or. Magazine of Zoology , Botany, and Geology, 1(1): 27-30. Comment on the proposed attribution of the specific name of Ceratites nodosus to Schlotheim, 1813, and the proposed designation of a lectotype (Cephalopoda, Ammonoidea) (Case 2732; see BZN 48: 31-35, 246) E.T. Tozer Geological Survey of Canada, 100 West Pender Street, Vancouver, British Columbia, Canada, V6B 1R8 1. Urlichs's proposal (BZN 48: 33, 34) is to attribute the specific name of Ammonites nodosa to Schlotheim, 1813, rather than to Bruguiere, 1789, and to accept Ammonites nodosa Schlotheim, 1813 as the type species of Ceratites de Haan, 1825. 1 consider these proposals to be unnecessary and undesirable, particularly since the original specimen of Ammonites nodosa Bruguiere has been discovered and proposed as lectotype. I therefore now propose to the Commission that this original specimen be confirmed as the lectotype. In the following paragraphs I spell out in some detail the history of this important case. 2. Ammonites nodosa Bruguiere, 1789 (p. 43) is based on an illustration (pi. 39, no. 262) in an anonymous work published simultaneously in Paris and The Hague in 1742. The Paris edition is entitled Traite des Petrifications and the Hague edition Memoires pour servir a I'Histoire Naturelle des Petrifications dans les quatre parties du Monde. Apart from the title pages the books are the same. The author is disguised as 'B***'. These works are attributed to Louis Bourguet (1678-1742). He interpreted the
Comment On The Proposed Attribution Of The Specific Name Of Ceratites Nodosus To Schlotheim, 1813, And The Proposed Designation Of A Lectotype (Cephalopoda, Ammonoidea)
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