Aliceia aenigmatica Dautzenberg & Fischer, 1897

Abbate, Daniel, V. Lima, Patricia Oristanio & L. Simone, Luiz Ricardo, 2022, The genera Famelica Bouchet & Warén, 1980 and Aliceia Dautzenberg & Fischer, 1897 (Conoidea Raphitomidae) collected by the MD 55 expedition in the Brazilian coast with descriptions of two new species, Zoosystema 44 (23), pp. 565-574 : 570

publication ID	https://doi.org/ 10.5252/zoosystema2022v44a23
publication LSID	urn:lsid:zoobank.org:pub:E4101C7F-6364-4E57-B219-223120A8A128
DOI	https://doi.org/10.5281/zenodo.7462112
persistent identifier	https://treatment.plazi.org/id/038A7D34-FF81-6578-97B1-80589AB8F988
treatment provided by	Felipe
scientific name	Aliceia aenigmatica Dautzenberg & Fischer, 1897
status

Treatment

Aliceia aenigmatica Dautzenberg & Fischer, 1897 View in CoL

( Fig. 5 View FIG )

Aliceia aenigmatica Dautzenberg & Fischer, 1897: 182 View in CoL (pl. 4; figs 15- 18). — Bouchet & Warén 1980: 91 (figs 190, 230). — Figueira & Absalão 2012: 5, 6 (figs 1, 2) (including other citations).

TYPE LOCALITY. — Azores Island, Princess Alice Bank.

DISTRIBUTION. — E Atlantic: Portugal and Azores ( Dautzenberg & Fischer 1896, 1897; Dautzenberg 1927; Bouchet & Warén 1980). W Atlantic: Vitória-Trindade Seamount Chain (present paper) to Rio de Janeiro (Figueria & Absalão 2012).

HABITAT. — Mud and sand bottoms, bathypelagic zone; 290-1980 m.

MATERIAL EXAMINED. — Brazil • 4 shells; Espírito Santo; VitoriaTrindade Chain ; MD55 ; Bouchet, Leal & Métivier col.; V.1987; sta. DC72; 19°00’S, 37°49’W; 950-1050 m depth; MNHN- IM-2012-25417 GoogleMaps • 2 shells; same data; 27. V.1987; MZSP 157438 View Materials GoogleMaps • 4 shells; sta. DC 75; 18°59’S, 37°50’W; 295 m depth; MNHN- IM-2012-25416 GoogleMaps • 1 shell; same data; 27. V.1987; MZSP 157437 View Materials ( Fig. 5A, B View FIG ) GoogleMaps • 4 shells; sta. CB76 ; 18°59’S, 37°50’W; 637 m depth; MNHN-IM-2012-25415 GoogleMaps • 2 shells; same data; 27. V.1987; MZSP 157435 View Materials ( Fig. 5C, D View FIG ) GoogleMaps • 4 shells; sta. CB77 ; 19°41’S, 37°48’W; 790- 940 m depth; 27. V.1987; MNHN-IM-2012-25414 ( Fig. 5F View FIG ) GoogleMaps • 2 shells; sta. CB93 ; 19°36’S, 38°53’W; 640 m depth; MNHN- IM-2012-25413 GoogleMaps • 2 shells; same data; MZSP 157436 View Materials ( Fig. 5E View FIG ) GoogleMaps .

MORPHOLOGICAL FEATURES

Shell ( Fig. 5 View FIG )

Fusiform, slender, spire high, about twice as long as wide, with c. 6-7 convex whorls, colour cream to white, translucent. Protoconch ( Fig. 5 View FIG E-G) in two parts: 1) slightly darker, with granulation near suture, with c. 1.5-2 whorls; transition between protoconch 1 and 2 distinguished only by difference of sculpture; 2) c. 1.5-2 whorls, sculpture numerous spiral and axial ribs, in cancellate pattern near suture, light cream. Teleoconch smooth, without sculpture, except for growth lines. Suture well-marked. Spire angle c. 46°. Outer lip of aperture with projection in shoulder region similar to elongated concave scale, structure periodically detected in previous regions of entire teleoconch, 3-4 per whorl ( Fig. 5A, B, D View FIG ). Aperture elliptical, 3 times as long as wide; c. 1/2 of shell length ( Fig. 5A, C, F View FIG ). Canal short, c. 1/8 of shell length. Anal notch marked by projected scales. Outer lip thin, fragile, smooth, without sculpture or lirae. Inner lip straight, without folds. Umbilicus opened, flanked by carinated area, ending in canal.

Measurements (length × width in mm) MNHN-IM-2012-25415, sta. CB 76 ( Fig. 5C, D View FIG ): 3.2 by 1.8; MNHN-IM-2012-25413, sta. CB 93 ( Fig. 5F View FIG ): 2.7 by 1.3; MNHN-IM-2012-25416, sta. DC75 ( Fig. 5A, B View FIG ): 4.2 by 2.1; MNHN-IM-2012-25414, sta. CB 77 ( Fig. 5G View FIG ): 3.6 by 1.5.