Bulimulus tenuissimus

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Bulimulus tenuissimus
Bulimulus tenuissimus shell 2.png
Abapertural view of an adult shell of Bulimulus tenuissimus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Bulimulidae
Genus: Bulimulus
Species:
B. tenuissimus
Binomial name
Bulimulus tenuissimus
(d’Orbigny, 1835)
Synonyms

Helix tenuissima (Fér.) Orb., 1835 [1]

Bulimulus tenuissimus is a species of tropical air-breathing land snail, a pulmonate gastropod mollusk in the subfamily Bulimulinae.

Contents

Distribution

The native distribution of Bulimulus tenuissimus includes:

The non-indigenous distribution includes:

Description

The shell is perforate, ovate-conic, very thin, pellucid, scarcely shining, obsoletely and closely decussated by growth striae and delicate spiral lines. [5] The shell is pale corneous in color, sometimes fulvous. [5] The spire is conoid. [5] The apex is rather acute. [5] The suture is simple. [5] The shell has six whorls that are slightly convex, increasing with moderate rapidity. [5] The last whorl is convex, not descending in front, somewhat attenuated at base. [5] The columella is suboblique, sometimes nearly vertical. [5]

The aperture is oval, colored like the exterior, onehalf the shell's length. [5] The peristome is simple, unexpanded, acute. [5] The right margin is regularly arcuate. [5] The columellar margin is reflexed above, nearly covering the perforation. [5]

The width of the shell is 9 mm. The height of the shell is 17-23 mm. [5] [6]

Apertural view of a juvenile shell of Bulimulus tenuissimus. Bulimulus tenuissimus shell 4.png
Apertural view of a juvenile shell of Bulimulus tenuissimus.

Ecology

The reproductive biology of this species was studied by Silva et al. (2008): [2] These hermaphroditic snails mate and cross-fertilization normally occurs. [2] When snails are isolated self-fertilization can occur, but with the lower reproductive success. [2]

A juvenile snail reaches adulthood at 160 days on average, with a shell size of 14-16 cm, after which the snail will begin laying eggs. [6] The egg laying activity is highest in spring and summer months when there is higher heat and humidity, but eggs are produced year-around. [6]

Eggs are laid in clutches from one to 252 eggs (in captivity). [2] Snails hatch after about 20 days and over 50% of the egg clutch is expected to hatch. [2] [6] Despite the snail's relatively long lifespan of up to 990 days, [2] [6] the viability of eggs does not reduce as the snail ages, although egg production is lower. [6]

Bulimulus tenuissimus is a host for a trematode of the genus Postharmostomum (family Brachylaimidae). [2] [7]

Strongyluris -like larvae are a parasite of Bulimulus tenuissimus. [8]

Malacophagula neotropica (family Sarcophagidae) is a parasite of Bulimulus tenuissimus. [9] [10]

A firefly is a predator of Bulimulus tenuissimus. [11]

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References

This article incorporates public domain text from the reference. [5]

  1. ↑ (Fér.) Orb. (1835). Mag. de Zool. p. 11. (name only).
  2. 1 2 3 4 5 6 7 8 Silva, L. C.; Meireles, L. M. O.; Junqueira, F. V. O.; Bessa, E. C. A. (2008). "Development and reproduction in Bulimulus tenuissimus (Mollusca: Bulimulidae) in laboratory". Revista Brasileira de Zoologia. 25 (2): 220. doi: 10.1590/S0101-81752008000200009 .
  3. ↑ Robinson D. G. & Slapcinsky J. (2005). "Recent introductions of alien land snails into North America". American Malacological Bulletin. 20: 89–93.
  4. ↑ Breure A. S. H. (11 August 2009). "Another Bulimulus introduced in USA". Bram's Snail Site, accessed 15 August 2010.
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pilsbry H. A. (1897-1898). Manual of Conchology, structural and systematic, with illustrations of the species. Second series: Pulmonata. Volume 11. American Bulimulidae: Bulimulus, Neopetraeus, Oxychona, and South American Drymaeus. 64-65, plate 10, figure 91-92.
  6. 1 2 3 4 5 6 Silva, Lidiane; Meireles, Liliane; D’ávila, Sthefane; Oliveira Junqueira, Flávia; de Almeida Bessa, Elisabeth Cristina (2013). "Life history of Bulimulus tenuissimus (D'Orbigny, 1835) (Gstropoda, Pulmonata, Bulimulidae): effect of isolation in reproductive strategy and in resources allocation over their lifetime" (PDF). Molluscan Research. 33 (2): 75–79 – via Taylor & Francis.
  7. ↑ Thiengo, S. C.; Amato, S. B. (1995). "Phyllocaulis variegatus (Mollusca: Veronicellidae), a new intermediate host for Brachylaima sp. (Digenea: Brachylaimatidae)". Memórias do Instituto Oswaldo Cruz. 90 (5): 621. doi: 10.1590/S0074-02761995000500015 .
  8. ↑ Thiengo, S. C. (1995). "Presence of Strongyluris-like larvae (Nematoda) in some terrestrial molluscs in Brazil". Memórias do Instituto Oswaldo Cruz. 90 (5): 619–620. doi: 10.1590/s0074-02761995000500014 . PMID   8569476., HTML, PDF Archived 20 July 2011 at the Wayback Machine .
  9. ↑ Johnson, C. W. (1929). "Diptera Destroying Snails". Psyche: A Journal of Entomology. 36 (2): 106. doi: 10.1155/1929/21785 . PDF.
  10. ↑ Bequaert, J. (1925). "The Arthropod Enemies of Mollusks, with Description of a New Dipterous Parasite from Brazil". Journal of Parasitology . 11 (4): 201–212. doi:10.2307/3270829. JSTOR   3270829.
  11. ↑ Symondson, W. O. C. (2004). "Coleoptera (Carabidae, Staphylinidae, Lampyridae, Drilidae and Silphidae) as predators of terrestrial gastropods". In Baker, G. M. (ed.). Natural enemies of terrestrial molluscs. UK and USA: CABI Publishing. p. 69. ISBN   9780851993195.

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