Actogidiella

Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Cladus: Pancrustacea
Superclassis: Multicrustacea
Classis: Malacostraca
Subclassis: Eumalacostraca
Superordo: Peracarida
Ordo: Amphipoda
Subordo: Gammaridea
Superfamilia: Crangonyctoidea

Familia: Bogidiellidae
Genus: Actogidiella
Species: A. cultrifera
Name

Actogidiella Stock, 1981
References

The Subterranean Amphipod Database

Actogidiella is a monotypic genus of amphipod crustaceans. It contains only the species Actogidiella cultrifera.[1] The genus' name derives from the Greek word for seacoast and the suffix -gidiella which refers to its habitat.[2]: 355 
Description

The genus has small coxal plates which are wider than they are long. Towards the rear, these plates do not overlap. There are three pairs of coxal gills.[2]: 355 

The mandibles are reduced in chewing capabilities, having a slightly transformed palp with swollen second segments. The first maxilla has a palp with 2 segments and a bristled inner lose. The second maxilla is similar, but is slightly less bristly. The maxilliped has short inner and outer lobed which have short spines pointed outwards. This maxilliped is not sexually dimorphous, but is the same in both male and female members of the genus.[2]: 355 

The pleopodal lungs are not transformed, but one spine on the second segment of the second pleopod is transformed in male specimens. The first uropod is transformed in both males and females. The endopodites are curved and dagger-like; the exopodite is shorter than the endopodite; in females they are rod-like with transformed spines. The second uropod is not transformed, and the third uropod is monomerous with a very shallow outward notch.[2]: 355 
Taxonomy
Specimens

The type specimen of Actogidiella cultrifera is a female collected in the Virgin Islands by Jan Hendrik Stock west of the Well Bay airfield on Beef Island, in the species' type locality. Today, the specimen is kept at the Zoological Museum of Amsterdam along with several paratype and allotype specimens.[3]
Species

In its original description in 1981, Actogidiella was stated to be a monotypic genus containing only the species Actogidiella cultrifera. However, it is possible that related species could be placed into the genus, and one as yet unnamed species in Curaçao is likely to be another member.[2]: 355 
Distribution and habitat

The genus has been recorded in Tortolla in the West Indies. Its habitat can be intertidal, interstitial, or marine beaches.[2]: 355 
References

"Compendium of Bogidiellid Amphipoda Species". bogidiellids.myspecies.info. Retrieved 2020-09-10.
Stock, Jan H. (1981). "The Taxonomy and Zoogeography of the family Bogidiellidae (Crustacea, Amphipoda), with Emphasis on the West Indian Taxa" (PDF). Bijdragen tot de Dierkunde. University of Amsterdam. 51 (2) – via bogidiellids.myspecies.info.
Horton, T. (2022). "Actogidiella cultrifera Stock, 1981". WoRMS. World Register of Marine Species. Retrieved 2 February 2022.