Helicocranchia pfefferi

Banded piglet squid
	Ventral view of a specimen taken off Southern California (41 mm ML)
Conservation status
	; Data Deficient (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Order:	Oegopsida
Family:	Cranchiidae
Subfamily:	Taoniinae
Genus:	Helicocranchia
Species:	H. pfefferi
Binomial name
	Helicocranchia pfefferi; Massy, 1907
Synonyms
	Helicocranchia beebei Robson, 1948

Helicocranchia pfefferi, the banded piglet squid, is a small squid of the genus Helicocranchia. Adults of this species are mesopelaegic.

Physical characteristics

The average size of adult H. pfefferi is 100 mm (3.9 in) in mantle length (ML). The body consists of a large funnel with small paddle-like fins. They have small tentacles above their eyes. The funnel does not have valves, but contains a dorsal pad with three papillae as organs.^{[citation needed]} Paddle-shaped fins are attached to a part of the gladius. H. pfefferi has a single ocular photophore and does not have photophores at its arm tips.

Habitat

As paralarvae (<30 mm ML), they live near the surface of the oceans, between 100 m and 200 m deep. They descend to the mesopelagic zone as they mature, but exhibit a diel vertical migration pattern.^[3]

References

^ Barratt, I.; Allcock, L. (2014). "Helicocranchia pfefferi". IUCN Red List of Threatened Species. 2014: e.T162906A951921. doi:10.2305/IUCN.UK.2014-1.RLTS.T162906A951921.en. Retrieved 20 November 2021.
^ Julian Finn (2016). "Helicocranchia pfefferi Massy, 1907". World Register of Marine Species. Flanders Marine Institute. Retrieved 1 March 2018.
^ Lu, C.C. & M.R. Clarke (1975). "Vertical Distribution of Cephalopods at 11° N 20° W in the North Atlantic". Journal of the Marine Biological Association of the United Kingdom. 55 (2): 369–389. doi:10.1017/S0025315400016003. S2CID 250946620.

Prey

Its diet resembles that of most squid: fish, shrimp, and squid.

Young, R.E. & K.M. Mangold (1922-2003). 2006. Helicocranchia Massy, 1907. Version 16 July 2006 (under construction). In: The Tree of Life Web Project.

External links

"CephBase: Helicocranchia pfefferi". Archived from the original on 2005-08-17.
Images of Helicocranchia from the SERPENT Project
Blog post with much information

[iucn_status_20_November_2021-1] Barratt, I.; Allcock, L. (2014). "Helicocranchia pfefferi". IUCN Red List of Threatened Species. 2014: e.T162906A951921. doi:10.2305/IUCN.UK.2014-1.RLTS.T162906A951921.en. Retrieved 20 November 2021.

[WoRMS-2] Julian Finn (2016). "Helicocranchia pfefferi Massy, 1907". World Register of Marine Species. Flanders Marine Institute. Retrieved 1 March 2018.

[3] Lu, C.C. & M.R. Clarke (1975). "Vertical Distribution of Cephalopods at 11° N 20° W in the North Atlantic". Journal of the Marine Biological Association of the United Kingdom. 55 (2): 369–389. doi:10.1017/S0025315400016003. S2CID 250946620.

[1]

[2]

[3]

Banded piglet squid

Ventral view of a specimen taken off Southern California (41 mm ML)
Conservation status
Data Deficient (IUCN 3.1)^[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Order:	Oegopsida
Family:	Cranchiidae
Subfamily:	Taoniinae
Genus:	Helicocranchia
Species:	H. pfefferi
Binomial name
*Helicocranchia pfefferi* Massy, 1907^[2]
Synonyms
Helicocranchia beebei Robson, 1948