Myrianida pachycera ( Augener, 1913 )

Rodríguez, Yolanda Lucas, Martín, Guillermo San & Fiege, Dieter, 2019, A new species and nine new records of Syllidae (Annelida) from the Socotra Archipelago (Indian Ocean), Zootaxa 4651 (2), pp. 235-258: 253-254

publication ID

https://doi.org/10.11646/zootaxa.4651.2.2

publication LSID

lsid:zoobank.org:pub:A90D52DC-727E-4723-B205-47B3C4F0C3A7

persistent identifier

http://treatment.plazi.org/id/03F187B1-FFE2-243F-FF6F-A308FF3BFDA0

treatment provided by

Plazi

scientific name

Myrianida pachycera ( Augener, 1913 )
status

 

Myrianida pachycera ( Augener, 1913) 

Autolytus pachycerus Augener, 1913: 257–260  , pl. 2, fig. 11, 12, text-fig. 40A–C; 1927: 157–158.— Nygren & Sundberg 2003: GenBank sequences, 16S rDNA partial sequence AF474258View Materials, and 18S rDNA partial sequence AF474304View Materials.

Myrianida pachycera Imajima 1966b: 79–82  , fig. 26A–L.— Imajima 1967: 417.

Myrianida pachycerus Hartman 1966: 362–363  , fig. 1A–B.

Autolytus purpureimaculata Okada 1933: 332–338  , figs. 6–11; 1937.— Imajima & Hartman 1964: 100.

Myrianida crassicirrata Hartmann-Schröder, 1965: 119–121  , figs. 47–49.

Material examined. Socotra, Samhah Island , intertidal, amongst algae, 12º10’99N / 53º04’23E, algae, 07.04.2000, 1 specimen ( SMF 24995View Materials)  .

Remarks. One female specimen with 28 segments up to beginning of the stolons, 3.8 mm long, 0.64 mm wide, yellowish coloration, cirri with same length along the body up to formation of stolon. A line of five stolons attached in different stages of maturation. Specimen very fragile. Four red eyes arranged in open trapezoidal arrangement. Nuchal epaulettes not visible. Palps fused along all their length. No ciliation observed in dorsal view. Median antenna thick, flat reaching almost chaetiger 10. Lateral antennae and ventral tentacular cirri 1/2 length of median antenna. Lateral antennae and tentacular cirri cylindrical, annulated. Almost all cirri lost on left side. First dorsal cirri similar in length to lateral antennae. Second dorsal cirri ¾ length of median antenna, thick and flat. Cirri 3 to 8 alternate in length short/long and in thick/flat shape. Schizogamous reproduction by gemmiparity, behind either chaetiger 31 or 34 ( Nygren, 2004).

Habitat. Intertidal, shallow depths, together with rich epifauna ( Nygren, 2004); in Socotra also amongst algae.

Distribution. East Indian Ocean, Pacific, West Atlantic. Australia, Japan, Hawaii, California, Florida ( Nygren, 2004).

SMF

Forschungsinstitut und Natur-Museum Senckenberg

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Phyllodocida

Family

Syllidae

Genus

Myrianida

Loc

Myrianida pachycera ( Augener, 1913 )

Rodríguez, Yolanda Lucas, Martín, Guillermo San & Fiege, Dieter 2019
2019
Loc

Myrianida pachycera

Imajima, M. 1967: 417
Loc

Autolytus purpureimaculata

Imajima, M. & Hartman, O. 1964: 100