Pittieria aurantiaca

Pittieria aurantiaca[3] is a species of predatory air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Spiraxidae.

Pittieria aurantiaca
Drawing of apertural view of the shell of Pittieria aurantiaca
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia

clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora

informal group Sigmurethra
Superfamily:
Testacelloidea
Family:
Spiraxidae
Subfamily:
Euglandininae
Genus:
Pittieria
Subgenus:
Laeviglandina
Species:
P. aurantiaca
Binomial name
Pittieria aurantiaca
(Angas, 1879)[1]
Synonyms

Euglandina aurantiaca Angas, 1879 Oleacina aurantiaca[2]

This species was described based on only one specimen.[1] This specimen was collected by William More Gabb (1839-1878) in Costa Rica, and the species was described under the name Euglandina aurantiaca by George French Angas in 1879, after Gabb's death.[1] The species was subsequently moved to the genus Pittieria, which was created by Eduard von Martens in 1901.

This snail is carnivorous but it also eats honeydew while that substance is being produced by a species of lantern bug. A species of carpenter ant has been observed climbing onto the head of the snail in order to steal some of the honeydew while the snail is feeding in this way.

Distribution

The type locality of Pittieria aurantiaca was described as "from the hilly country", in Costa Rica.[1] It is now known to occur in the following countries and areas:

Description

The shell of Pittieria aurantiaca is fusiformly oblong, moderately thin and smooth.[1] The surface is shiny. The color is a bright tawny orange, darker towards the base of the columella.[1] The shell has 5½ slightly convex whorls.[1] The spire is papillose and obtuse.[1] The suture has a dark purple colour and is impressed.[1] The columella is slightly oblique, shortly truncated in front.[1] The outer lip is moderately arcuate, simple, not effuse towards the base.[1] The aperture is elliptically oblong and is a pale rosy purple within.[1] The aperture covers half of the length of the shell.[1]

The width of the shell is 13 mm.[5] The height of the shell is 29–30 mm.[5] The height of the aperture is 15–16 mm.[5]

Ecology

All Spiraxidae are thought to be carnivorous.[7]

Pittieria aurantiaca has been observed to feed on honeydew produced and ejected by Enchophora sanguinea (a lantern bug in the family Fulgoridae). This is thought to be the first known trophobiotic interaction between a gastropod and an insect.[8] It was also observed that sometimes ants of an undescribed species in the genus Camponotus (JTL-005, JTL-005 on AntWeb, on Ants of Costa Rica) positioned themselves on the head of the snail in order to "steal" (kleptotrophobiosis) honeydew from the head of the snail.[8] The snail did not appear to be disturbed in any way by this behavior of the ants.[8]

References

This article incorporates public domain text from the reference [1]

  1. Angas G. F. (1879). "On the Terrestrial Mollusca collected in Costa Rica by the late Dr. W. M. Gabb, with Descriptions of new Species". Proceedings of the Zoological Society of London: 475-485. 481. Plate 40, fig. 8.
  2. Pilsbry H. A. (1908). Manual of Conchology (2)1: 31. Plate 5, figure 67.
  3. Thompson F. G. (16 June 2008). "AN ANNOTATED CHECKLIST AND BIBLIOGRAPHY OF THE LAND AND FRESHWATER SNAILS OF MEXICO AND CENTRAL AMERICA" Archived 2012-10-12 at the Wayback Machine. "PART 4 PULMONATA (ACHATINOIDEA-SAGDOIDEA)" Archived 2016-06-02 at the Wayback Machine. accessed 14 January 2011.
  4. (in Spanish) Barrientos Z. (2003). "Lista de especies de moluscos terrestres (Archaeogastropoda, Mesogastropoda, Archaeopulmonata, Stylommatophora, Soleolifera) informadas para Costa Rica". Revista de Biología Tropical 51(Suppl. 3): 293-304. PDF Archived 2011-06-29 at the Wayback Machine
  5. Martens E. v. (1901). Biologia Centrali-Americana. Mollusca. 601-706. British Museum (Natural History). page 612.
  6. Pilsbry H. A. (1926). "The land mollusks of the Republic of Panama and the Canal Zone". Proceedings of the Academy of Natural Sciences of Philadelphia 78: 57-126. pages 96-97. figure 22d. JSTOR.
  7. Thompson, FG (2010). "Four species of land snails from Costa Rica and Panama (Pulmonata: Spiraxidae)" (PDF). Revista de Biología Tropical. 58 (1): 195–202. doi:10.15517/rbt.v58i1.5204. PMID 20411717. Archived from the original (PDF) on 2011-06-29.
  8. Naskrecki, Piotr; Nishida, Kenji (2007). "Novel trophobiotic interactions in lantern bugs (Insecta: Auchenorrhyncha: Fulgoridae)" (PDF). Journal of Natural History. 41 (37–40): 2397. doi:10.1080/00222930701633570.


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