Sabinella troglodytes

Sabinella troglodytes
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda
Superfamily:	Eulimoidea
Family:	Eulimidae
Genus:	Sabinella
Species:	S. troglodytes
Binomial name
	Sabinella troglodytes; (Thiele, 1925)
Synonyms[1]
	Eulima troglodytes Thiele, 1925; Mucronalia nidorum Pilsbry, 1956; Sabinella nidorum (Pilsbry, 1956)

Sabinella troglodytes is a species of small sea snail, a marine gastropod mollusk in the family Eulimidae. It is a parasitic snail found near the coast of Brazil which lives on the body of the slate pencil urchin Eucidaris tribuloides.[2]

Distribution

Distribution of Sabinella troglodytes include near the coast of Brazil.[2]

Description

The maximum recorded shell length is 4.1 mm.[3]

Habitat

Minimum recorded depth is 1 m.[3] Maximum recorded depth is 46 m.[3]

Feeding habits

Eucidaris tribuloides is a host of Sabinella troglodytes

S. troglodytes feed and live on the spines of sea urchins. It lives on the body of the slate pencil urchin Eucidaris tribuloides. Unlike most of its gastropod relatives, S. troglodyte has lost its radula so they gain access to all that soft internal spine tissue of a sea urchin by secreting some kind of corrosive substance that eats through the tough walls of the spine.[2] This parasitic snail is not content to simply just feed on the sea urchin, they also alter the urchin's spines to make it a more comfortable home.[2] Sabinella troglodytes is one of many species of gall-forming snails that parasitize echinoderms.[2] It is currently unknown how S. troglodytes alters the sea urchin's spines, but it could be due to some other components in the snail's saliva.[2] In addition to a corrosive agent to erode the sea urchin's spine, it might also be spitting out growth factors that alter the tissue of the spine. In addition to being a cozy place to feed and hide from threats, these galls seem to be a bit of a love nest for S. troglodytes during the summer months.[2]

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gollark: If you manage to get this thing fully complete, I will be interested, though.

References

Bouchet, P. (2010). Sabinella troglodytes. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=419856 on 2017-11-18
Queiroz, V., Neves, E., Sales, L., & Johnsson, R. (2017). The gall-former Sabinella troglodytes (Caenogastropoda: Eulimidae) and its association with Eucidaris tribuloides (Echinodermata: Echinoidea). Journal of Conchology 42: 371-377.
Welch J. J. (2010). "The “Island Rule” and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.

External links

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[1] Bouchet, P. (2010). Sabinella troglodytes. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=419856 on 2017-11-18

[Queiroz_2017-2] Queiroz, V., Neves, E., Sales, L., & Johnsson, R. (2017). The gall-former Sabinella troglodytes (Caenogastropoda: Eulimidae) and its association with Eucidaris tribuloides (Echinodermata: Echinoidea). Journal of Conchology 42: 371-377.

[Welch_2010-3] Welch J. J. (2010). "The “Island Rule” and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.