Paraopisthosyllis phyllocirra Hartmann-Schröder, 1991

Aguado, M. Teresa, Murray, Anna & Hutchings, Pat, 2015, Syllidae (Annelida: Phyllodocida) from Lizard Island, Great Barrier Reef, Australia, Zootaxa 4019 (1), pp. 35-60: 47

publication ID

http://dx.doi.org/10.11646/zootaxa.4019.1.5

publication LSID

lsid:zoobank.org:pub:40FE3B2F-C8A4-4384-8BA2-9FD462E31A8B

persistent identifier

http://treatment.plazi.org/id/1F0887F9-FF80-FFD5-3390-A7B83F531CFA

treatment provided by

Plazi

scientific name

Paraopisthosyllis phyllocirra Hartmann-Schröder, 1991
status

 

Paraopisthosyllis phyllocirra Hartmann-Schröder, 1991 

( Figs 5View FIGURE 5. A C, 6)

Paraopisthosyllis phyllocirra Hartmann-Schröder, 1991: 27  , figs 26–29.

Paraopisthosyllis phyllocirra  .— San Martín & Hutchings 2006: 322, figs 55 A –F.

Material examined. AM W. 44766, MI QLD 2399; AM W. 44740, MI QLD 2400, on SEM; AM W. 44771, MI QLD 2395.

Description. Longest specimen 5 mm long, approximately 50 chaetigers, some red-brown spots dorsally and laterally and one transverse line per segment of same colour. Dorsal and ventral surfaces covered by numerous, scattered, rounded papillae ( Figs 6View FIGURE 6 A –B). Prostomium oval, 4 eyes arranged in open trapezoidal pattern; lateral antennae inserted near anterior margin, median antenna similar to lateral. Palps folded ventrally ( Fig. 6View FIGURE 6 A). Peristomium slightly shorter than subsequent segments; tentacular cirri similar, thicker and larger than antennae ( Fig. 6View FIGURE 6 B). Dorsal cirri inflated, alternating in position between laterodorsal and lateral ( Fig. 5View FIGURE 5. A C); laterodorsally located ones large and inflated, while those arising more laterally smaller and less inflated ( Figs 6View FIGURE 6 A –C). Parapodia sub-rectangular, with several distal papillae. Anterior parapodia with 8–12 compound, heterogomph chaetae with long curved, bidentate blades, with dorsoventral gradation in length of blades within fascicle ( Figs 6View FIGURE 6 D –E). Midbody and posterior parapodia with 7–10 compound chaetae similar in shape, but with shorter blades, all of same length or with slight dorsoventral gradation in length within fascicle ( Figs 6View FIGURE 6 F –I). Posterior parapodia with one dorsal unidentate simple chaeta, and one ventral bidentate sigmoid simple chaeta. Anterior parapodia with 3 aciculae, distally rounded, some distally curved; 1–2 aciculae on posterior parapodia. Pharynx wide, through 5 segments; pharyngeal tooth set back from anterior ring of the pharynx. Proventricle large, through 5 segments.

Remarks. The shape of the dorsal and ventral simple chaetae was not properly described in previous descriptions. Dorsal cirri are not leaf-shaped, as previously described for the holotype, an artefact possibly caused by distortion due to mounting the type specimen on a slide for examination by compound microscopy. First report for Lizard Island.

Habitat. Coralline sand, intertidally.

Distribution. Australia (Queensland).

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Phyllodocida

Family

Syllidae

Genus

Paraopisthosyllis

Loc

Paraopisthosyllis phyllocirra Hartmann-Schröder, 1991

Aguado, M. Teresa, Murray, Anna & Hutchings, Pat 2015
2015
Loc

Paraopisthosyllis phyllocirra

San 2006: 322
2006
Loc

Paraopisthosyllis phyllocirra Hartmann-Schröder, 1991 : 27

Hartmann-Schroder 1991: 27