Protomyzostomum lingua

Dataset
Turbo-taxonomy: 21 new species of Myzostomida (Annelida): Rank
SPECIES: Published in
Summers, Mindi M., Al-Hakim, Iin Inayat, Rouse, Greg W. (2014): Turbo-taxonomy: 21 new species of Myzostomida (Annelida). Zootaxa 3873 (4): 301-344, DOI: 10.11646/zootaxa.3873.4.1

Classification

kingdom
Animalia: phylum
Annelida: class
Polychaeta: order
Myzostomida: family
Protomyzostomidae: genus
Protomyzostomum: species
Protomyzostomum lingua

diagnosis

Diagnosis and description. Holotype recovered from host’s bursa (Fig. 7 A – B). Body elongate, rounded posteriorly and anteriorly (Fig. 7 C – F). Length ~ 1.3 cm, width ~ 6 mm following fixation. Mouth and cloaca terminal. Five pairs of low parapodia with chaetae small and barely emergent. Orange in life, color faded in preservative.

discussion

Remarks. Four species of Protomyzostomum have been previously described — Protomyzostomum glanduliferum Bartsch & Faubel, 1995, P. polynephris Fedotov, 1912, P. astrocladi Fedotov, 1925, and P. sagamiense Okada, 1922. Protomyzostomum polynephris and P. sagamiense were recorded from basketstar hosts (Gorgonocephalus), from Arctic and Japanese waters respectively. Protomyzostomum glanduliferum is known from Antarctic waters, but inhabits the brittlestar Ophiacantha antarctica. Sequences of Lanterbecq et al. (2006) for P. glanduliferum and P. polynephris were found to be incorrect in Summers & Rouse (2014). An undescribed myzostomid has also been recorded from another Antarctic brittlestar, Ophionotus victoriae Bell, 1902 by Bartsch & Faubel, 1995.

etymology

Etymology. Latin for tongue, named for its resemblance to a mammalian tongue.

materials_examined

Holotype: SIO-BIC A 4088 (S 1976) paragenophore (1 spm: in 70 % ethanol after formalin fixation). Discovery Bank, Antarctica (Stn. DB 1 - 67) (60 ° 7 ' 38.733 " S, 34 ° 54 ' 11.1954 " W), 379 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 15 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host. Gorgonocephalus chilensis (Philippi) (Gorgonocephalidae, Euryalida, Ophiuroidea). SIO-BIC E 6110 (S 4088) (DNA subsample only). Genbank (COI — KM 491789). Paratypes: SIO-BIC A 3226 (S 1977) paragenophore (2 spms: 1 — in 70 % ethanol after formalin fixation; 1 — 95 % ethanol), SIO-BIC A 3238 (S 1976) paragenophores (2 spms: 1 — in 70 % ethanol after formalin fixation; 1 — 95 % ethanol). Genbank (COI — KM 014171). Same host and locality as holotype. SIO-BIC A 3227 (S 4381) syngenophores (2 spms: 1 — form and 1 — 95 % ethanol). Discovery Bank, Antarctica (Stn. DB 1 - 58) (60 ° 6 ' 39.726 " S, 34 ° 49 ' 35.7594 " W), 439 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 13 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6109 (S 4561) (DNA subsample only). SIO-BIC A 3244 syngenophore (S 1034) (1 spm: in 70 % ethanol after formalin fixation). Discovery Bank, Antarctica (Stn. DB 1 - 74) (60 ° 8 ' 15.3594 " S, 34 ° 51 ' 38.6274 " W), 407 – 409 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 16 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6111 (S 1033) (DNA subsample only). SIO- BIC A 3853 (S 5732) syngenophores (2 spms: 95 % ethanol). Burdwood Banks, Antarctica (Stn. BB 1 - 106) (54 ° 39 ' 54.039 " S, 61 ° 14 ' 8.682 " W), 307 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 31 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6136 (S 5660). SIO-BIC A 3854 (S 5733) syngenophore (1 spm: 95 % ethanol). Burdwood Banks, Antarctica (Stn. BB 1 - 106) (54 ° 39 ' 54.039 " S, 61 ° 14 ' 8.682 " W), 307 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 31 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6137 (S 5661); Genbank (COI — KM 491788). SIO-BIC A 3855 (S 5734) syngenophore (1 spm: 95 % ethanol). Burdwood Banks, Antarctica (Stn. BB 1 - 106) (54 ° 39 ' 54.039 " S, 61 ° 14 ' 8.682 " W), 307 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 31 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6134 (S 5658). SIO-BIC A 3856 syngenophore (S 5735) (1 spm: 95 % ethanol). Burdwood Banks, Antarctica (Stn. BB 1 - 106) (54 ° 39 ' 54.039 " S, 61 ° 14 ' 8.682 " W), 307 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 31 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6135 (S 5659). SIO-BIC A 3857 (S 5737) syngenophores (2 spms: 95 % ethanol). Burdwood Banks, Antarctica (Stn. BB 1 - 106) (54 ° 39 ' 54.039 " S, 61 ° 14 ' 8.682 " W), 307 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 31 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6141 (S 5665). SIO-BIC A 3858 (S 5737) syngenophores (5 spms: 95 % ethanol). Same host and locality as SIO-BIC A 3857. SIO-BIC A 4005 (S 5541) syngenophore (1 spm: 95 % ethanol). Burdwood Banks, Antarctica (Stn. BB 1 - 104) (54 ° 39 ' 2.8794 " S, 60 ° 1 ' 36.4614 " W), 195 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 31 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6130 (S 5600). SIO-BIC A 4006 (S 5543) syngenophore (1 spm: 95 % ethanol). Burdwood Banks, Antarctica (Stn. BB 1 - 104) (54 ° 39 ' 2.8794 " S, 60 ° 1 ' 36.4614 " W), 195 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 31 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis. SIO-BIC A 4003 (S 5739) syngenophore (3 spms: 95 % ethanol). Burdwood Banks, Antarctica (Stn. BB 1 - 107) (54 ° 40 ' 17.328 " S, 61 ° 14 ' 1.428 " W), 305 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 31 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6147 (S 5730). SIO-BIC A 4004 (S 5738) syngenophores (5 spms: 95 % ethanol). Burdwood Banks, Antarctica (Stn. BB 1 - 107) (54 ° 40 ' 17.328 " S, 61 ° 14 ' 1.428 " W), 305 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 31 October 2011 by Nerida Wilson, GWR, MMS, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6145 (S 5669). SIO-BIC A 4022 (S 21383) syngenophores (2 spms: 1 — in 70 % ethanol after formalin fixation; 1 — 95 % ethanol). Burdwood Banks, Antarctica (Stn. BBW- 78) (53 ° 58 ' 9.4794 " S, 61 ° 28 ' 2.28 " W), 158 m. Collected via the R / V Nathaniel B. Palmer using a Blake trawl on 5 May 2013 by Nerida Wilson, GWR, and science team. Host: Gorgonocephalus chilensis, SIO-BIC E 6150 (S 21308).

Name

Homonyms: Protomyzostomum lingua