Myurellopsis, Fedosov & Malcolm & Terryn & Gorson & Modica & Holford & Puillandre, 2019

Fedosov, Alexander E, Malcolm, Gavin, Terryn, Yves, Gorson, Juliette, Modica, Maria Vittoria, Holford, Mandë & Puillandre, Nicolas, 2019, Phylogenetic classification of the family Terebridae (Neogastropoda: Conoidea), Journal of Molluscan Studies The Malacological Society of London 85 (4), pp. 359-388 : 20-21

Genus Myurellopsis new genus

( Fig. 7 G–I)

Type species: Terebra undulata Gray, 1834 .

Zoobank registration: urn:lsid:zoobank.org:act:EC3F14B2-3595-482B-9890-399BA78A7631

Definition: Includes all species included in the clade E5B of Modica etal. (2019) and those that show a combination of conchological, anatomical and distribution characteristics closely comparable with Myurellopsis undulata or any genetically proven member of the genus.

Diagnosis: Diagnostic nucleotide combinations in Table 10 .

Shell: Small to medium-sized (<50 mm), pinkish or orange, often with white subsutural band. Protoconch multispiral. Sculpture of strong, rounded, slightly undulating ribs, polished in appearance. Row of punctations with groove partially cutting ribs forming subsutural band. Interstices between ribs deep, narrow, bearing regular striae, often darkly coloured. Adapical parts of ribs forming one row of rounded nodules, separated from their lower portions by shallow depression or partial groove. Siphonal canal moderately long, tapering, with weakly developed fasciole.

Anatomy: Two distinct states—either all typical foregut structures present, or all lacking; in latter case, accessory proboscis structure present.

Distribution: Throughout Indo-Pacific; intertidal to upper bathyal depths (to 358 m), typically shallow.

Remarks: Species in Myurellopsis n. gen. appear conchologically closest to Myurella species, but can be differentiated by the sharper, more elevated ribs, often with nodes on the subsutural band or top of the whorls.

Etymology: The name refers to the close resemblance between its members and species in the genus Myurella . Gender feminine.

Included species:

Myurellopsis alisi (Aubry, 1999) 3 n. comb.;

M. columellaris (Hinds, 1844) 1 n. comb.;

M. guphilae (Poppe, Tagaro & Terryn, 2009) 1 n. comb.;

M. joserosadoi (Bozzetti, 2001) 1 n. comb.;

M. kilburni (R. D. Burch, 1965) 1 n. comb.;

M. monicae (Terryn, 2005) 2 n. comb.;

M. nathaliae (Drivas & Jay, 1988) 1 n. comb.;

M. parkinsoni (Bratcher & Cernohorsky, 1976) 1 n. comb.;

M. paucistriata (E. A. Smith, 1873) 1 n. comb.;

M. undulata (Gray, 1834) 1 n. comb.;

M. vaubani (Aubry, 1999) 3 n. comb.

Genera defined based on conchological characters

Figures

Figure 7. Genera Myurella, Maculauger n. gen. and Myurellopsis n. gen. A. Myurella affinis, MNHN-IM-2013-17860, PAPUA NIUGINI Stn PR196, 05◦12.3'S, 145◦48.8'E, 0 m, 39.8 mm. B. Myurella fortunei, MNHN-IM-2013-58677, KAVIENG 2014 Stn DW4468, 02◦45'S, 150◦37'E, 190–472 m, 25.2 mm. C. Myurella amoena, MNHN-IM-2013-46861, KAVIENG 2014 Stn KR02, 02◦37.5'S, 150◦46.5'E, 10–14 m, 24.9 mm. D. Myurella pygmaea, MNHN-IM-2009- 10121, off Lovanono, S Madagascar, 0–5 m, 6.1 mm. E. Maculauger pseudopertusa, MNHN-IM-2009-9954, MIRIKY Stn DW3230, 13◦25'S, 47◦57'E, 71–158 m, 42.9 mm. F. Maculauger campbelli, MNHN-IM-2013-52252, EXBODI Stn CP3836, 22◦08'S, 167◦11'E, 415–420 m, 20.5 mm. G. Myurellopsis undulata, MNHN-IM-2013-10252 PAPUA NIUGINI Stn PR07, 05◦12.5'S, 145◦48.5'E, 2–17 m, 31.9 mm. H. Myurellopsis kilburni, MNHN-IM-2013-12712, PAPUA NIUGINI Stn PS11, 05◦04.7'S, 145◦48.9'E, 0–5 m, 24.8 mm. I. Myurellopsis joserosadoi, MNHN-IM-2013-52369, INHACA 2011 Stn MR13, 25◦59.7'S, 32◦54.5'E, 2–5 m, 17.9 mm.