Abstract
Pentanchus profundicolus is an enigmatic shark, characterized by a single dorsal fin. The holotype, which was collected in 1909 from the Philippines, had remained the only known example of the species for 90 years. A second specimen, collected from the same waters, is re-described. The presence of a single dorsal fin remains equivocal in so far as it represents the normal condition for the species. Aspects of the species' relationship with the species ofApristurus are discussed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature Cited
Compagno, L. J. V. 1984. FAO species catalogue. Vol. 4, Sharks of the world. Food and Agriculture Organization of the United Nations, Rome. 655 pp.
Compagno, L. J. V. 1988. Sharks of the order Carcharhiniformes. Princeton Univ. Press, Princeton, New Jersey. 486 pp.
Garman, S. 1913. The plagiostomia. Mem. Mus. Comp. Zool. Harvard Coll., 36: 1–515.
Jordan, D. S. and C. L. Hubbs. 1925. Record of fishes obtained by David Starr Jordan in Japan, 1922. Mem. Carnegie Mus., 10: 93–346.
Leviton, A. E., R. H. Gibbs, Jr., E. Heal and C. E. Dawson. 1985. Standards in herpetology and ichthyology: Part I. Standard symbolic cords for institutional resource collections in herpetology and ichthyology. Copeia, 1985: 802–832.
Nakaya, K. 1975. Taxonomy, comparative anatomy and phylogeny of Japanese catsharks. Scyliorhinidae. Mem. Fac. Fish. Hokkaido Univ., 23: 1–94.
Nakaya, K. 1991. A review of the long-snouted species of Apristurus (Chondrichthyes. Scyliorhinidae). Copeia, 1991: 992–1002.
Nakaya, K. and K. Sato. 1999. Species grouping within the genusApristurus (Elasmobranchii: Scyliorhinidae). Pages 307–320in B. Séret and J.-Y. Sire, eds. Proceedings of the 5th Indo-Pacific Fish Conference, Nouméa, 3–8 November 1997, Société Française d'Ichtyologie & Institut de Recherche pour le Développement, Paris.
Regan, C. T. 1912. Philippine sharks. Science, Wash., 36: 81
Séret, B. 1989. Chondrichthyan fishes of the Musorstom cruises in the Indo-Pacific. Page 83in Programme and abstracts of papers, 3rd Indo-Pacific Fish Conference, Wellington.
Smith, H. M. 1912. Description of a new notidanoid shark from the Philippine Islands, representing a new family. Proc. U.S. Nat. Mus., 41: 489–491.
Springer, S. 1979. A revision of the catsharks, family Scyliorhinidae. NOAA Tech. Rep. Circ., 422: 1–152.
Teshima, K., Y. Kamei, M. Toda and S. Uchida. 1995. Reproductive mode of the tawny nurse shark taken from the Yaeyama Islands. Okinawa. Japan with comments on individuals lacking the second dorsal fin. Bull. Seikai Nat. Fish. Res. Inst., (73): 1–12.
Teshima, K., M. Toda, Y. Kamei, S. Uchida and M. Tamaki. 1999. Reproductive mode of the tawny nurse shark.Nebrius ferrugineus (Elasmobranchii: Ginglymostomatidae) in Okinawa waters, with comments on individuals lacking the second dorsal fin. Pages 329–333in B. Séret and J.-Y. Sire, eds. Proceedings of the 5th Indo-Pacific Fish Conference, Nouméa, 3–8 November 1997, Société Française d'Ichtyologie & Institut de Recherche pour le Développement, Paris.
Author information
Authors and Affiliations
About this article
Cite this article
Nakaya, K., Séret, B. Re-description and taxonomy ofpentanchus profundicolus smith & radcliffe, based on a second specimen from the philippines (chondrichthyes, carcharhiniformes, scyliorhinidae). Ichthyological Research 47, 373–378 (2000). https://doi.org/10.1007/BF02674265
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02674265