Huffmanela lata

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Huffmanela lata
Huffmanela lata.jpg
Egg of
Huffmanela lata
Scientific classification edit
Kingdom: Animalia
Phylum: Nematoda
Class: Enoplea
Order: Trichocephalida
Family: Trichosomoididae
Genus: Huffmanela
Species:
H. lata
Binomial name
Huffmanela lata
Justine, 2005

Huffmanela lata is a parasitic nematode.[1] It has been observed on the skin of the grey reef shark Carcharhinus amblyrhynchos off New Caledonia. This species has only been reported once in the scientific literature.[1]

Description[edit]

The grey reef shark (Carcharhinus amblyrhynchos) from New Caledonia in which Huffmanela lata was discovered

The adults of Huffmanela lata are unknown, only the eggs were described.[1] The eggs are 77-88 (mean 84) micrometers in length and 52-63 (mean 57) micrometers in width, with a thick (6-8 micrometers) shell, apparently spinose. Mobile larvae, 200-250 micrometers in length, were visible in the eggs.

Biology[edit]

As it is often the case for species of Huffmanela, the species was found because the accumulation of its eggs produced a black spot; in this particular case, the black spot was on the skin of the shark, near the gill. No adult were found.[1]
The biology of Huffmanela lata is unknown. Its eggs are probably released from the skin with the turnover of living tissues and immediately continue their life-cycle. The intervention of an intermediary host in the life-cycle (possibly an invertebrate) is possible, as it has been suggested for other species of Huffmanela.[2] However, it is also possible that transmission of the parasite from shark to shark occurs when sharks congregate and skin-to-skin contacts between sharks are frequent.[1] Other species of Huffmanela are known from other sharks.[3][4]

See also[edit]

References[edit]

  1. ^ a b c d e Justine, J.-L. 2005: Huffmanela lata n. sp. (Nematoda: Trichosomoididae: Huffmanelinae) from the shark Carcharhinus amblyrhynchos (Elasmobranchii: Carcharhinidae) off New Caledonia. Systematic Parasitology, 61, 181-184.
  2. ^ Moravec, František. 2001: Trichinelloid Nematodes parasitic in cold-blooded vertebrates. Academia, Praha (ISBN 80-200-0805-5)
  3. ^ Bullard, S. A., Ruiz, C. F., McElwain, A., Murray, M. J., Borucinska, J. D. & Benz, G. W. 2012: Huffmanela cf. carcharhini (Nematoda: Trichosomoididae: Huffmanelinae) from skin of a sandbar shark, Carcharhinus plumbeus, in the Pacific Ocean. Journal of Parasitology, 98, 333-340. doi:10.1645/GE-2962.1
  4. ^ Moravec, František. 1987: Revision of Capillariid Nematodes (Subfamily Capillariinae) parasitic in fishes. Studie ČSAV No. 3, Academia, Praha, 141 pp.

External links[edit]