(broderip, 1833) (gastropoda: muricidae) from baja ...

2 downloads 0 Views 710KB Size Report
When Keen (1971) published the second edition of her great work on the Panamic fauna! province, the muricid gastropod Aspella pyramidalis (Broderip, 1833) ...
Vol. XXVIIK5): 1996

THE FESTIVUS

Page 58

T H E FIRST RECORD OF ASPELLA PYRAMIDALIS (BRODERIP, 1833) (GASTROPODA: MURICIDAE) FROM BAJA CALIFORNIA SUR, MEXICO

GIJS C . KRONENBERG c/o Milieu Educatie Centrum, PO Box 435, NL-5600 AK Eindhoven, the Netherlands

When Keen (1971) published the second edition of her great work on the Panamic fauna! province, the muricid gastropod Aspella pyramidalis (Broderip, 1833) was known from Mazatlan, Sinaloa, Mexico to Panama and the Islas Galapagos (Keen:527). Since that time, some extensions of the known distribution were published, both southward to Colombia (Radwin & D'Attilio, 1976; Cosel, 1984 (fide Skoglund, 1992:69)) and northward to Bahla San Carlos, Sonora, Mexico (Poorman & Poorman, 1988:58). While diving off Punta Concepci6n, east of Muleg6, Baja Qlifornia Sur, Mexico, on 21 June 1995, I found one specimen of this species at 8 meters, under a rock. The specimen measures 13.4 mm long. This record extends the known distribution of Aspella pyramidalis to the Baja peninsula. This specimen is in my collection (no. 5005). I would like to thank Mr. Roland Houart from Landen, Belgium, for identhying the specimen, and Mr. Ron P.A. Voskuil from Delft, the Netherlands for photography.

POORMAN, FORREST L. & LEROY H. POORMAN 1988. A report of the molluscan species in the San Carlos rectangle, Sonora, Mexico, collected by Forrest L. and Leroy H. Poorman from December 1953 to December 1983. The Festivus 20(6):47-63, 1 map. RADWIN, GEORGE E. & ANTHONY D'ATTILIO 1976. Murex Shells of the World. An Illustrated Guide to the Muricidae. Stanford University Press, pp. 1-284, 32 pis., 192 text figs, [non vide]. SKOGLUND, CAROL 1992. Additions to the Panamic Province gastropods (Mollusca) literature 1971 to 1992. The Festivus 24 (supplement) i-viii + 1-169.

LITERATURE CITED COSEL, RUDO VON 1984. Moluscos marinos de las Isla de Gorgona (costa del Pacifico Colombiano). Annales del Institute) de Investigaciones Marinas de Punta de Beun 14:175-257, figs. 1-42 [non vide]. KEEN, A. MYRA 1971. Sea Shells of Tropical West America...2nd edition. Stanford University Press, i-xiv + 1-1064, 12 color pis + b/w illus.

Figure 1. Aspella pyramidalis, apertural and dorsal views of specimen 13.4 mm L , Punta Concepcion, Baja California Sur, Mexico, 21 June, 1995. Leg. G. C . Kronenberg.