Showing papers in "Veliger in 1971"

A revised classification of the family turridae with the proposal of new subfamilies genera and subgenera from the eastern pacific

Abstract: T H E FAMILY TURRIDAE is exceptionally large in genera and species. POWELL'S (1966) review of the 549 generic and subgeneric names proposed in the family, with illustrations of type species of each accepted taxon, has greatly facilitated an approach to this large and otherwise unwieldy family. Chiefly because of this impetus, I undertook a review of the tropical eastern Pacific members of the family as a contribution to the forthcoming revised edition of Dr. A. Myra KEEN'S \"Sea Shells of Tropical West America,\" which is now in press. This paper is offered both to validate the new subfamilies, genera, and subgenera utilized in the new edition, and to present more fully my scheme of classification at the subfamily level, since this departs considerably from previous classifications. Because the classification is based extensively upon the radula, the paper also gives photographic illustrations of radular ribbons of numerous species in order to document this approach. Publication of the book will follow shortly. Since it will contain diagnoses and new photographs of each of the 295 species of Turridae now recognized in the Panamic Province, shell illustrations need not be included here. It will be assumed that the reader has access to POWELL'S (1966) monograph for a more complete understanding of the available genera. The differences between my concepts of many of these genera and those of previous authors are fully explained in the new edition and will not be repeated here. Two papers validating new species of tropical eastern Pacific turrids are being published concurrently in this issue of the Veliger. In some cases the type species of the new taxa described herein are introduced as new species by MCLEAN & POORMAN (1971), describing 53 new species, or by SHASKY (1971), describing 10 new species.

New species of tropical eastern pacific turridae

Abstract: A REVISED CLASSIFICATION of the eastern Pacific members of the family Turridae has been prepared by the senior author as a contribution to the forthcoming revised edition of S e a s h e l l s of T r o p i c a l W e s t A m e r i c a , by Dr. Myra KEEN. During the course of this review, a number of new species have been recognized in the available collections. The new species are validated here for inclusion in the new edition, which is to be published during the summer of 1971. The 53 new species plus 10 described by Donald R. Shasky (1971) comprise approximately 25% of the total of 255 shallow water species of Panamic Province turrids entered in the text. Omitting the endemic species discussed below from the Galapagos Islands, the percentage of new species in the fauna drops to 19%, still a rather high percentage. There remain, in the collections at hand, about 20 species that are obviously new, but not described at this time, for lack of a fully mature specimen in good condition, or because some were recognized too late to be included in the book. Doubtless many more are yet to be found. Two considerations may help to explain this high percentage of new species in a faunal province that is otherwise reasonably well known. First, the difficulty until now, of identifying previously described species of turrids because of the general lack of good illustrations. With the exception of the effort by KEEN (1958) in the first edition, there are no recent attempts at compilation, the papers