Vibilia jeangerardi Lucas 1845
- Dataset
- A review of the hyperiidean amphipod superfamily Vibilioidea Bowman and Gruner, 1973 (Crustacea: Amphipoda: Hyperiidea)
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Malacostraca
- order
- Amphipoda
- family
- Vibiliidae
- genus
- Vibilia
- species
- Vibilia jeangerardi
diagnosis
Diagnosis Body length up to 14 mm. Antennae 1 as long as head and first pereonite; flagellum oval, distal margin rounded. Gnathopod 2; carpal process about halflength propodus. Pereopods 3 & 4; dactylus relatively short, length about 0.2 x propodus. Pereopods 5 & 6; dactylus length slightly more than 0.1 x propodus. Pereopod 7; basis rectangular, width about 0.8 x length, slightly longer than ischium to carpus combined, with slight rounded posterodistal lobe barely overlapping ischium. Lateral corners of last urosomite not produced. Uropod 3; peduncle distinctly longer than rami; sexual dimorphism of endopod not evident. Telson semicircular, length almost half peduncle of U 3.
discussion
Remarks This species most closely resembles V. propinqua, and perhaps also V. gibbosa, but is readily distinguished by the relatively short dactylus of the pereopods, particularly pereopods 5 and 6, and by the rounded telson. Vibilia jeangerardi is a wellknown associate of Salpa maxima (Marion 1874, Madin & Harbison 1977, Laval 1980). The publication date for this species is not clear from the literature with some authors referring it to 1849, which is the date of the title page of the work, while others quote 1845 (e. g. Bovallius 1887 c, Vinogradov et al. 1982). According to Sherborn and Woodward (1901) and Woodward (1904), that part of the work by Lucas describing V. jeangerardi was actually published in 1846.
discussion
Type material The type of V. jeangerardi could not be found at the MNHN and is considered lost. Although the description and figures by Lucas (1846) are inadequate, the status of this, relatively common, Mediterranean species has been established by Marion (1874), Bovallius (1887 c) and Chevreux (1900). The type locality is the Mediterranean Sea, harbour at Bône, Algeria.
discussion
Type material of synonyms The type of V. speciosa could not be found in any major Italian Museum (see acknowledgments) and is considered lost. This species is most likely a synonym of V. jeangerardi based on Costa’s description, and the fact that it is a common Mediterranean species. The type of V. mediterranea could not be found in any major European museum (see acknowledgments) and is considered lost. Claus merely lists this species as occurring in salps; there is no description or figures. Thus, it is a nomen nudum. It seems a synonym of V. jeangerardi, based solely on geographical grounds, and has been regarded as such, by subsequent authors. It has not been recognised as a valid species since Claus (1880).
distribution
Distribution This species is most common in the Mediterranean Sea and the North Atlantic Ocean but, has also been recorded from the Indian Ocean, northeast of Madagascar (Stephensen 1918).
materials_examined
Material examined (> 350 specimens) Several lots from the Mediterranean and North Atlantic in the ZMUC (especially CRU 2855 2860; over 350 specimens) and ZMB (2 lots).
Name
- Homonyms
- Vibilia jeangerardi Lucas 1845