Filellum antarcticum (Hartlaub 1904)
- Dataset
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Cnidaria
- class
- Hydrozoa
- order
- Leptothecata
- family
- Lafoeidae
- genus
- Filellum
- species
- Filellum antarcticum
biology_ecology
Ecology and distribution. The material, which represents the first record for the area, was collected at a depth of 187 m off Sturge Island, epibiotic on S. lobata. Coppiniae in January.
description
(Fig. 1 A – C)
discussion
Remarks. The presence of coppinia in the present material allows identification with confidence. The nestshaped coppinia consists of closely packed gonothecae (Fig. 1 A) surrounded by a fence of distally open defensive tubes arching over them. The gonothecae are deprived of distal neck (Fig. 1 B). Some of them, however, with distal part slightly raised (Fig. 1 C), but never forming a distally everted neck as found in the other known Antarctic species of the genus, Filellum magnificum Peña Cantero, Svoboda & Vervoort, 2004. The gonotheca is roughly 260 µm high, 130 µm in maximum diameter, and 65 – 70 µm in diameter at aperture. The shape and size of the hydrothecae in the present material also match Hartlaub’s species, with a hydrothecal diameter of 100 – 120 µm.
materials_examined
Material examined. E 203, several hydrothecae and two coppiniae, on Stegella lobata (Vanhöffen, 1910) (NIWA 128467).
Name
- Homonyms
- Filellum antarcticum (Hartlaub 1904)