Levinsenia kirbyorum Lovell, 2002,

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: 262-264

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.3718171

persistent identifier

http://treatment.plazi.org/id/03878787-B643-2419-FF66-5CC1956BFE7E

treatment provided by

Plazi

scientific name

Levinsenia kirbyorum Lovell, 2002
status

 

Levinsenia kirbyorum Lovell, 2002  , emended

Figures 3View FIGURE 3 A–D, 7C, H

Levinsenia kirbyae Lovell, 2002: 49–51  , Fig. 9A–D. Levinsenia  sp B SCAMIT 2007 §: SCAMIT 2007, Vol 25, No. 5, 1-12.

Material examined. Indian Ocean, Andaman Sea, Sta. G-2/ OS, 23 April 1996, 63 m depth, paratype ( LACM- AHF 2091View Materials).— USA. California. Orange County, Huntington Beach , OCSD  Survey 97130, 1997, Sta. 37, rep. 4, 56 m depth, 0.1 m ² Van Veen grab, 07 January 1997, 1.0 mm sieve, 1 specimen, SEM stub ( LACM-AHF 12565); OCSD  Survey 9276, Sta. Control, replicate 5, 60 m depth, 0.1 m ² Van Veen grab, 23 July 1992, 1.0 mm sieve, 1 specimen, SEM stub ( LACM-AHF 12566).— San Diego County, Carlsbad, Encina Treatment Plant , NPDES 9126  , Sta. R2  , rep. 4, 33°07.566’N, 117°20.694’W, 45 m depth, 0.1 m ² Van Veen grab, 1991, 1.0 mm sieve, 1 specimen, SEM stub ( LACM-AHF 12567); Southern California Bight Project ( SCBP), Bight 2003, Sta. A 2, 29 m deep, 6 Aug 2003, North San Diego Shelf, 33.165°N 117.391°W, 0.1 m ² Van Veen grab, 1.0 mm sieve, coll. Weston Solutions 1 specimen, SEM stub ( LACM-AHF 12568); SCCWRPGoogleMaps  , Southern California Bight Project ( SCBP), Bight 2008, Sta. 7556, 92 m deep, 09 September 2008, Channel Islands, 34.0790°N 119.7008°W, 0.1 m ² Van Veen grab, 1.0 mm sieve, 3 specimens ( LACM-AHF 12569); Carlsbad , Encina Treatment Plant NPDES 9232GoogleMaps  , Sta. G1, replicate 3, 33°06.42’N 117°20.74’W, 45 m depth, 0.1 m ² Van Veen grab, 1992, 1.0 mm sieve, 1 specimen ( LACM-AHF 12570); NPDES 9344GoogleMaps  , Sta. G2, rep. 3, 33°06.73’N, 117°20.85’W, 45 m depth, Van Veen grab, 1993, 1.0 mm sieve, 1 specimen ( LACM-AHF 12571); NPDES 9232GoogleMaps  , Sta. R2  , rep. 1, 33°07.566’N, 117°20.694’W, 45 m depth, 0.1 m ² Van Veen grab, 1992, 1.0 m sieve, 1 specimen ( LACM-AHF 12572); Cardiff by the Sea, San Elijo Treatment Plant NPDESGoogleMaps  , sta. A-2-5, replicate 2, ~ 33.07°N, 117.25°W, 45(?) m depth, 9 March 2004, 0.1 m ² Van Veen grab, 1.0 mm sieve, 1 specimen ( LACM-AHF 12573); San Onofre , SONGS D400-175GoogleMaps  XXII, rep. 2, ~ 33.36°N, 117.57°W, 53.34 m depth, 6 April 1980, 0.1 m ² Van Veen grab, 1.0 mm sieve, 1 specimen ( USNM 1604269View Materials); Carlsbad, Encina Treatment Plant NPDESGoogleMaps  : 9344, Sta. R2  , rep. 3, 33°07.566′N, 117°20.694′W, 46 m depth, 0.1 m ² Van Veen grab, 1993, 1.0 mm sieve, 1 specimen ( USNM 1604270View Materials).— Orange County, Huntington Beach , OCSD NPDESGoogleMaps  Survey 97139, Sta. ZB, rep. 3, 33°34.54’N, 118°0.00’W, 56 m depth, 0.1 m ² Van Veen grab, 22 October 1997, 1.0 mm sieve, 1 specimen ( LACM-AHF 12574); OCSD NPDESGoogleMaps  Survey 9276, Sta. 37, rep. 2, 33°34.83’N, 117°57.37’W, 56 m depth, 0.1 m ² box core, 24 July 1992, 1.0 mm sieve, 1 specimen ( LACM-AHF 12575); OCSD NPDESGoogleMaps  Survey 9276, Sta. Control , replicate 4, 33°36.04’N, 118°5.39’W, 60 m depth, 0.1 m ² box core, 23 July 1992, 1.0 mm sieve, 2 specimens ( LACM-AHF 12576); OCSD NPDESGoogleMaps  Survey 98151, Sta. 5, rep. 1, 33°34.74’N, 118°01.61’W, 59 m depth, 0.1 m ² Van Veen, 21 October 1998, 1.0 mm sieve, 1 specimen ( LACM-AHF 12577)GoogleMaps 

Description. Specimens up to 39 mm long, 0.15–0.35 mm wide. Body inflated, dorsally flattened in prebranchial region, thereafter round in cross section. Tan color. Prostomium triangular, longer than wide; terminal sensory organ present; median antenna absent; ciliated peristomial nuchal slits. Prebranchial segments slightly inflated ( Fig. 3AView FIGURE 3), with two longitudinal dorsal grooves. Branchiae begin on chaetigers 7–8, 13–20 pairs, conical; cilia present on lateral branchiae margins, continue as transverse bands across dorsum ( Fig. 3BView FIGURE 3). Notopodial post-chaetal lobes short, conical in pre-branchial chaetigers, digitate in branchial region, shorter post-branchial. Notopodial sensory pores present along entire body ( Fig. 3CView FIGURE 3), immediately below notochaetae, may have projecting filament. Neuropodial post-chaetal lobes absent. Notopodia with capillary chaetae only. Neuropodia with capillary chaetae and up to 13 concave, fringed acicular spines in post-branchial segments. Neuropodial spines thinner, straighter (superior) and thicker, more recurved (inferior), double rows in far posterior chaetigers ( Figs 3EView FIGURE 3, 7HView FIGURE 7). Abdominal segments with deep, transverse dorsal intersegmental furrows. Pygidium unknown.

Methyl green stain. Branchial region with ventral bands, and distinct notopodial post-branchial spots ( Fig. 7CView FIGURE 7).

Remarks. SEM images of Levinsenia  sp B SCAMIT 2007 § confirmed that it is the same as L. kirbyorum  , described from the Andaman Sea, as noted in the voucher sheet. The unusual dorsal longitudinal furrows on the California material, which are very clearly visible with SEM ( Fig. 3AView FIGURE 3), were not described for L. kirbyorum  are confirmed The paratype of L. kirbyorum  (LACM-AHF 2091) was reviewed and dorsal furrows were confirmed. The original description of L. kirbyorum Lovell 2002  is emended to include these furrows. The California material examined also has the unique double-rowed neurochaetal fascicle arrangement described for L. kirbyorum  . Identical methyl green staining spots are present in post-branchial notopodial areas in both Andaman Sea and California specimens. This is a range extension from the Andaman Sea into Southern California. For information on diagnostic character differences, see the dichotomous key below and table of character distributions ( Table 2). The specific epithet is emended to acknowledge that the species was named in honor of three persons; Jacqueline Kirby Lovell, Andrew Kirby Lovell, and Robin Kirby Lovell. The name L. kirbyae  is emended to Levinsenia kirbyorum  .

Type locality. Andaman Sea.

Distribution. Andaman Sea, Indian Ocean; Southern California, 42–60 m depth.

OS

Oregon State University

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Family

Paraonidae

Genus

Levinsenia

Loc

Levinsenia kirbyorum Lovell, 2002

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

Levinsenia kirbyae

Lovell, L. L. 2002: 51