Fauveliopsis brattegardi Fauchald, 1972a

Salazar-Vallejo, Sergio I., Zhadan, Anna E. & Rizzo, Alexandra E., 2019, Revision of Fauveliopsidae Hartman, 1971 (Annelida, Sedentaria), Zootaxa 4637 (1), pp. 1-67 : 13

Fauveliopsis brattegardi Fauchald, 1972a

Figure 3

Fauveliopsis brattegardi Fauchald 1972a: 101–102 , Fig. 4A, B .

TL: South of Raudberg Light, Sognefjorden, Norway, 1248– 1228 m. D: Only known from the type locality.

Type material: Northeastern Atlantic Ocean, Norway. Holotype ( ZMUB 52205 ), juvenile, station south off Raudberg Lykt (61°03’ N, 05°24’ E), 1248– 1228 m, 3 May 1966 (2.1 mm long, 0.2 mm wide, 17 chaetigers; GP or oocytes not seen).

Diagnosis. Fauveliopsis with 17 chaetigers ( Fig. 3A, B ). Integument wrinkled, papillate. Parapodia with two aciculars and two capillaries per bundle (most broken, Fig. 3D ) in the three body regions. Neuroaciculars twice as wide as notopodial ones. Interramal papillae fungiform or pyriform.

Remarks. Fauveliopsis brattegardi differs from other species in the genus, as indicated in the key above. Among those species with similar number of chaetae along the body, F. brattegardi is the only one having 17 chaetigers and four chaetae per bundle, being two aciculars and two capillaries. Because of the small number of chaetigers, the holotype might be a juvenile, but more and better specimens are needed to clarify this issue.

The polarity was correctly assigned in the original description but because chaetae often break off their exposed portion ( Fig. 3C ), shorter chaetigers are difficult to count; the holotype has an additional chaetiger, being 17, not 16 as indicated in the original description.

Figures

FIGURE 3. Fauveliopsis brattegardi Fauchald, 1972a, holotype (ZMUB 52205). A. Dorsal view. B. Oblique, dorsal view. C. Anterior end, oblique dorsal view. D. Posterior end, dorsal view. Scale bars: A, B: 160 µm, C: 45 µm, D: 65 µm.

FIGURE 4. Fauveliopsis brevipodus Hartman, 1971, n. comb., holotype (USNM 55546), A. Dorsal view. B. Anterior region, dorsal view. C. Posterior region, dorsal view. Paratypes (USNM 55547). D. Oblique dorsal view. E. Dorsal view. Scale bars: A: 260 µm, B: 100 µm, C: 90 µm, D, E: 0.4 mm.