Lamispina gymnopapillata ( Hartmann-Schröder, 1965 ) Salazar-Vallejo, 2014

Salazar-Vallejo, Sergio I., 2014, Revision of Pherusa Oken, 1807 (Polychaeta: Flabelligeridae), Zootaxa 3886 (1), pp. 1-61 : 47-49

publication ID 10.11646/zootaxa.3886.1.1

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Lamispina gymnopapillata ( Hartmann-Schröder, 1965 )

comb. nov.

Lamispina gymnopapillata ( Hartmann-Schröder, 1965) View in CoL n. comb.

Figure 20 View FIGURE 20

Pherusa gymnopapillata Hartmann-Schröder 1965:228–229 View in CoL , Figs 224–225.— Rozbaczylo, 1985:160; Rozbaczylo et al., 2006:75–77, Fig. 2a–h View FIGURE 2 .

Type material. Southeastern Pacific Ocean. Holotype ( ZMH 14913), off Puerto Estero Cisne , Isla James (45.6° S, 74.1667° W), Los Chonos Archipelago, Chile, mussel bed, shallow water, 11 Jul. 1958, Stuardo, coll. GoogleMaps

Additional material. Southwestern Atlantic Ocean. One specimen ( CENPAT), Puerto Deseado, Argentina, fouling, harbor, station 3E, 22 May 2007, E. Schwindt, coll. (complete, 26 mm long, 3.3 mm wide, cephalic 7.5 cage mm long, 54 chaetigers; anterior end exposed).

Description. Holotype (ZMH 14913) an anterior fragment, breaking in half ( Fig. 20A View FIGURE 20 ), slightly damaged, pale brownish (colorless under strong illumination, Fig. 19B View FIGURE 19 ); chaetae reddish brown. Body cylindrical, slightly tapered to end of fragment; 15 mm long, 2.5 mm wide, cephalic cage 7 mm long, 26 chaetigers. Body papillae with sediment particles, elongate, slightly capitate, forming globular sediment tubercles, larger dorsally, 4–5 irregular rows per segment dorsally ( Fig. 20C View FIGURE 20 ), 5–6 ventrally ( Fig. 20D View FIGURE 20 ).

Anterior end not exposed (observed in additional material, exposed, all appendages lost). Prostomium low cone; eyes dark red, anterior pair larger. Caruncle well defined, pale, lateral ridges greyish. Palps lost, size relationship with branchiae unknown. Lateral lips expanded, dorsal lip reduced, ventral lip with round lobes.

Branchiae lost; branchial scars arranged in two groups, four bases forming a continuous row, other bases into two lateral groups, each with two scars. Nephridial lobes lost, between proximal branchiae.

Cephalic cage chaetae about 3 x as long as body width (twice as long in additional specimen). Chaetigers 1–3 forming cephalic cage; chaetae arranged in short dorsolateral series. Chaetiger 1 with 9 noto- and 7 thicker neurochaetae, chaetigers 2–3 with 7 chaetae per ramus.

Anterior dorsal margin of first chaetiger rounded, papillated; papillae long, with sediment along their base and mid section, becoming bottle-shaped. Anterior chaetigers with long papillae on chaetal lobes. Chaetigers 1–3 slightly longer posteriorly. Chaetal transition from cephalic cage to body chaetae abrupt; anchylosed, falcate lamispines from chaetiger 4. Gonopodial lobes on chaetigers 5–6, each as a rounded low lobe close to neuropodium.

Parapodia poorly developed, chaetae emerge from body wall. Parapodia lateral; medial neuropodia ventrolateral. Noto- and neuropodial lobes low, 2–3 interramal papillae, 2–3 postchaetal papillae; all generally longer than dorsal papillae.

Medial notochaetae arranged in a È-pattern, transverse to body axis, directed dorsally; all notochaetae multiarticulated capillaries, brownish, with articles medium-sized basally, long medially and distally ( Fig. 20E View FIGURE 20 ), about 10 per fascicle, as long as body width. Neurochaetae multiarticulated capillaries in chaetigers 1–3; lamispines from chaetiger 4, reddish brown, arranged in transverse series, 4 per row in chaetigers 4–13 ( Fig. 20F View FIGURE 20 ), 5 per row in following chaetigers.

Posterior end unknown.

Remarks. Lamispina gymnopapillata ( Hartmann-Schröder, 1965) , n. comb., L. carrerai n. sp., and L. horsti

( Haswell, 1892) n. comb. form a group of species with body papillae stiff and lamispines subdistally widened, falcate. As stated above, L. carrerai can be separated from the other two species, which have a shorter cephalic cage, due to its very long cephalic cage (6x longer than body width as opposed to 2–3 x longer than body width). Lamispina gymnopapillata differs from L. horsti in the number of notochaetae per bundle, and transverse series of papillae per segment; in L. gymnopapillata there are 10 notochaetae per bundle, and 4–6 transverse series of papillae per segment, whereas in L. horsti there are less notochaetae (5–6), and slightly less series of papillae (3–5).

Distribution. Only known from subtidally (sand, mussel beds, to 167 m depth), in a few localities in Southern Chile. Also in fouling communities in southern Argentina.


Zoologisches Museum Hamburg














Lamispina gymnopapillata ( Hartmann-Schröder, 1965 )

Salazar-Vallejo, Sergio I. 2014

Pherusa gymnopapillata Hartmann-Schröder 1965:228–229

Rozbaczylo, N. & Moreno, R. & Diaz-Diaz, O. & Martinez, S. 2006: 75
Rozbaczylo, N. 1985: 160
Hartmann-Schroder, G. 1965: 229
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