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Flabellina affinis



Profile

lexID:
3231 
AphiaID:
139988 
Scientific:
Flabellina affinis 
German:
Violette Fadenschnecke 
English:
Affinis Seaslug 
Category:
 
Family tree:
Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Flabellinidae (Family) > Flabellina (Genus) > affinis (Species) 
Initial determination:
(Gmelin, ), 1791 
Occurrence:
Middelhavet, Østlige Atlanterhav 
Size:
bis zu 4cm 
Temperature:
16°C - 20°C 
Food:
Hydrozoa polyps, Foder specialist 
Difficulty:
Not suitable for aquarium keeping 
Offspring:
None 
CITES:
Not evaluated 
Red List:
Not evaluated (NE) 
Related species at
Catalog of Life
:
 
More related species
in this lexicon
:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2010-06-12 14:21:24 

Husbandry

Flabellina affinis feeds on Eudendrium species (hydroids). They only ate the polyps. The F. affinis is a hermaphrodite and its reproduction occurs in the period from March to October. It has bundles of 6-6 each with 3-9 Cerata. This snail can be easily confused with F. pedata and F. ischitana. Only in F. affinis, the region directly under the white peaks of the opaque purple-colored Cerata. That's why the digestive system is not consistently visible to the tips . In F. ischitana and F. pedata it isn't the case, there is no coloring outside the opaque, but occurs more or less colored by the digestive organs, which extend into the Cerata. Also, the rhinophores with F. affinis ribbed much stronger than in the other species.

Pictures

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Husbandry know-how of owners

robertbaur am 11.09.14#1
von Muelly zur ID

Schwierig ist F. affinis und F. ischitana auseinander zu halten. Der Unterschied ist recht minimal und liegt hauptsächlich in der Farbe und Transparenz der Cerata.

Bei F. ischitana sollen die Cerata nie violett-lila sein. Sie sind transparent in ihrer ganzen Länge, so dass die orangefarbenen Verdauungsdrüsen durchscheinen und die Farbgebung der Cerata bestimmen.

Bei F. affinis sind die unteren 2/3 der Cerata transparent,das obere 1/3 nicht. Deshalb sind die Spitzen oft lila-violett, man sieht die Verdauungsdrüsen oben an der Spitze nicht durchscheinen.
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