Star Aspis
| Star Aspis | ||||||||||||
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Sternaspis affinis with retracted front end (rear end with gills on the right) |
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| Scientific name | ||||||||||||
| Star Aspis | ||||||||||||
| Otto , 1820 |
Sternaspis is the name of a genus of small, squat, polychaeta (polychaeta)living in mud, which can be found in seas around the world as detritus eater . It is one of three genera in the Sternaspidae family.
features
Annular worms of the genus Sternaspis have, like other Sternaspidae, a short, stocky body with only a few segments and a flat belly side, which usually narrows somewhat in the middle. The species of the genus Sternaspis are distinguished among these annelids as described by Kelly Sendall and Sergio I. Salazar-Vallejo from 2013 by seven abdominal segments, sickle-shaped hooks on the retractable front end (introvert) and a stiff end shield, often with radial ribs, concentric stripes or both.
species
The genus Sternaspis comprises the following 30 species in 2018 :
- Sternaspis affinis Stimpson, 1864 (Northeast Pacific)
- Sternaspis africana Augener, 1918 (West Africa)
- Sternaspis andamanensis Sendall & Salazar-Vallejo, 2013 (Andamans)
- Sternaspis annenkovae Salazar-Vallejo & Buzhinskaja, 2013
- Sternaspis britayevi Zhadan, Tzetlin & Salazar-Vallejo, 2017
- Sternaspis buzhinskajae Salazar-Vallejo, 2014
- Sternaspis chilensis Diaz-Diaz & Rozbaczylo, 2017
- Sternaspis chinensis Wu, Salazar-Vallejo & Xu, 2015
- Sternaspis costata Marenzeller, 1879 (Japan)
- Sternaspis fossor Stimpson, 1854 (Northwest Atlantic)
- Sternaspis islandica Malmgren, 1867 (Iceland)
- Sternaspis liui Wu, Salazar-Vallejo & Xu, 2015
- Sternaspis maior Chamberlin, 1919 (Gulf of California)
- Sternaspis maureri Salazar-Vallejo & Buzhinskaja, 2013
- Sternaspis monroi Salazar-Vallejo, 2014
- Sternaspis nana Zhadan, Tzetlin & Salazar-Vallejo, 2017
- Sternaspis papillosa Zhadan, Tzetlin & Salazar-Vallejo, 2017
- Sternaspis piotrowskiae Salazar-Vallejo, 2014
- Sternaspis princeps Selenka, 1885
- Sternaspis radiata Wu & Xu, 2017
- Sternaspis rietschi Caullery, 1944 (deep sea near Indonesia)
- Sternaspis scutata (Ranzani, 1817) (Mediterranean)
- Sternaspis sendalli Salazar-Vallejo, 2014
- Sternaspis spinosa Sluiter, 1882 (Indonesia)
- Sternaspis sunae Wu & Xu, 2017
- Sternaspis thalassemoides Otto, 1820 (Mediterranean)
- Sternaspis thorsoni Sendall & Salazar-Vallejo, 2013 (Persian Gulf)
- Sternaspis uschakovi Salazar-Vallejo & Buzhinskaja, 2013
- Sternaspis williamsae Salazar-Vallejo & Buzhinskaja, 2013
- Sternaspis wui Wu & Xu, 2017
Similar genera
In the family Sternaspidae there are two other genera besides star aspis : Caulleryaspis (with the two species Caulleryaspis gudmundssoni from Iceland and Caulleryaspis laevis from Indonesia) also has sickle-shaped hooks and seven abdominal segments, but a soft end shield to which sediment particles adhere firmly while it at Petersenaspis (with the two types Petersenaspis capillata of Brazil and Petersenaspis palpallatoci are spatula-shaped hooks and eight abdominal segments with a stiff end shield with barely discernible radial ribs and without concentric strips of the Philippines).
literature
- Kelly Sendall, Sergio I. Salazar-Vallejo: Revision of sternaspis otto, 1821 (polychaeta, sternaspidae). In: ZooKeys. Number 286, 2013, pp. 1-74, doi : 10.3897 / zookeys.286.4438 , PMID 23794844 , PMC 3677357 (free full text).
Web links
Individual evidence
- ↑ Sternaspis Otto, 1820. WoRMS , 2018. Accessed December 9, 2018.