Mikro globulus Warén, 1996

Ortega, José Rafael & Gofas, Serge, 2019, The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca, Zoosystema 41 (26), pp. 513-551 : 520

Mikro globulus Warén, 1996

( Fig. 4 I-L)

MATERIAL EXAMINED. — 14 sh., DW130.

REMARKS

New to Spanish waters. Compared to the paratypes from off Iceland illustrated in Warén (1996), our specimens are larger (1.5 mm vs 1 mm), with flatter whorls. Nevertheless the subsutural keel, very conspicuous at the beginning of the teleoconch and fading out later, and the narrow umbilicus bound by a deeply set spiral ridge, are similar. Considering that many other species (e.g. Rugulina fragilis (G. O. Sars, 1878) , Ancistrobasis reticulata (Philippi, 1844) , Cantrainea spp., Larsenia scalaroides Warén, 1989 , among others) are shared with the assemblage described by Warén (1996), we tentatively consider them conspecific.

Figures

FIG. 4. — A-H, Mikro oviceps n. sp.: A, B, holotype (sh.) from DW130 (diameter 0.8 mm); C, paratype (sh.), same locality (diameter 0.70 mm); D, paratype (sh.), same locality (diameter 0.76 mm); E, detail of the umbilicus, same specimen; F, protoconch, same specimen; G, paratype, (sh.) in apical view, same locality (diameter 0.67 mm); H, protoconch, same specimen; I-L, Mikro globulus Warén, 1996: I, shell from DW130 (height 1.50 mm); J, apical view of another shell, same locality (diameter 0,84 mm); K-L, protoconch and early teleoconch whorls of another shell, same locality; M-P, Mikro hattonensis Hoffman, van Heugten & Lavaleye, 2010, M, shell from DW130 (diameter 0.78 mm); N, detail of the umbilicus, same specimen; O, apical view of another shell, same locality (diameter 0.65 mm); P, detail of protoconch and first teleoconch whorl, same specimen. Scale bars: 100 µm.