Levinsenia multibranchiata ( Hartman, 1957 ),

Lovell, Lawrence L. & Fitzhugh, Kirk, 2020, Taking a closer look: an SEM review of Levinsenia species (Polychaeta: Paraonidae) reported from California, Zootaxa 4751 (2), pp. 257-275: 264-265

publication ID

https://doi.org/10.11646/zootaxa.4751.2.3

publication LSID

lsid:zoobank.org:pub:D0ADB14D-1A73-4325-859F-570EA2042F23

DOI

http://doi.org/10.5281/zenodo.3718169

persistent identifier

http://treatment.plazi.org/id/03878787-B641-2416-FF66-5C1994A3FB72

treatment provided by

Plazi

scientific name

Levinsenia multibranchiata ( Hartman, 1957 )
status

 

Levinsenia multibranchiata ( Hartman, 1957) 

Figures 4View FIGURE 4 A–D, 7D

Paraonis multibranchiata Hartman, 1957: 332–333  ; 1969: 79–80, Fig. 1View FIGURE 1.

Tauberia multibranchiata  . — Strelzov, 1973: 135–136, Figs 11(1), 59.

Levinsenia multibranchiata  . — Blake, 1996: 36, Fig. 2.3.

Material examined. USA, California, Santa Barbara County, Santa Barbara Channel Basin, 18.0 miles bearing 135° True from Point Conception Light , 34°14’10’’N, 120°12’45’’W, 502.9 m depth, green mud, Hayward orange peel grab, R / VGoogleMaps  Velero IV, Sta. 3731-55, coll. Allan Hancock Foundation, 12 December 1955, 14 paratypes (one specimen mounted on SEM stub) ( LACM-AHF POLY 648)  .— Orange County, Huntington Beach , OCSD NPDES  Survey 9270, Sta. C2, rep. 5, 33°36.12’N, 117°56.02’W, 56 m depth, 0.1 m ² Van Veen grab, 1.0 mm sieve, 1 specimen ( LACM-AHF 12578); survey 9382, Sta. C 2, rep. 1GoogleMaps  , 33°36.12’N, 117°56.02’W, 56 m depth, 0.1 m ² Van Veen grab, 1.0 mm sieve, 12 specimens ( LACM-AHF 12579); survey 9279, Sta. C 2, rep. 3GoogleMaps  , 33°36.12’N, 117°56.02’W, 56 m depth, 0.1 m ² Van Veen grab, 1.0 mm sieve, 20 specimens ( LACM-AHF 12580); survey 9279, Sta. C 2, rep. 5GoogleMaps  , 33°36.12’N, 117°56.02’W, 56 m depth, 0.1 m ² Van Veen grab, 1.0 mm sieve, 2 specimens ( LACM-AHF 12581); survey 95109, Sta. C 2, rep. 1GoogleMaps  , 33°36.12’N, 117°56.02’W, 56 m depth, 0.1 m ² Van Veen grab, 1.0 mm sieve, 1 specimen ( LACM-AHF 12582)GoogleMaps  .— San Diego County, Carlsbad, Encina Treatment Plant NPDES  Survey 9344, Sta. R2  , rep. 1, ~ 33°07.57’N, 117°20.69’W, 46 m depth, 0.1 m ² Van Veen grab, 1.0 mm sieve, 1 specimen ( LACM-AHF 12583); survey 9344, Sta. R2GoogleMaps  , rep. 3, ~ 33°07.57’N, 117°20.69’W, 46 m depth, 0.1 m ² Van Veen grab, 1.0 mm sieve, 1 specimen ( LACM-AHF 12584)GoogleMaps  .

Description. Specimens up to 30 mm long, 0.15–0.25 mm wide. Thorax slightly inflated in prebranchial chaetigers, rounded in cross section thereafter. Body tan. Prostomium conical, wider than long; poorly-developed terminal sensory organ; pair of ciliated peristomial nuchal organs; median antenna absent ( Fig. 4AView FIGURE 4). Branchiae begin on chaetigers 7–8, 20–36 pairs; thin, tapering, five times longer than wide ( Fig. 4BView FIGURE 4); cilia present on lateral edges, with connecting transverse dorsal bands of short cilia. Notopodial post-chaetal lobes papilla-like on chaetiger 1, digitate in branchiate region, shorter post-branchial. Notopodial sensory pores ( Fig. 4CView FIGURE 4) present on all segments. Neuropodial post-chaetal lobes absent. Noto- and neuropodial capillary chaetae from chaetiger 1. Acicular neurochaetae, 5–7 per fascicle, begin post-branchial; each spine slightly curved, tapering and thinner distally, with fringe of fibrils on convex margin; spines alternating with capillary chaetae ( Fig. 4DView FIGURE 4). Pygidium with dorsal anal pore, mid-ventral lobe, two short anal cirri.

Methyl green stain. None present ( Fig. 7DView FIGURE 7).

Type locality. Southern California, Santa Barbara Basin   .

Distribution. Southern and Central California, 45–540 m deep.

Remarks. Levinsenia multibranchiata  is readily distinguished from other SCB species by the more numerous and elongate branchiae. For information on diagnostic character differences, see the dichotomous key and Table 2.

R

Departamento de Geologia, Universidad de Chile

V

Royal British Columbia Museum - Herbarium

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Family

Paraonidae

Genus

Levinsenia

Loc

Levinsenia multibranchiata ( Hartman, 1957 )

Lovell, Lawrence L. & Fitzhugh, Kirk 2020
2020
Loc

Paraonis multibranchiata

Hartman, O. 1969: 79
Hartman, O. 1957: 333
Loc

Tauberia multibranchiata

Strelzov, V. E. 1973: 135
Loc

Levinsenia multibranchiata

Blake, J. A. 1996: 36