Nassa lathraia Sturany, 1900

Albano, Paolo G., Bakker, Piet A. J., Janssen, Ronald & Eschner, Anita, 2017, An illustrated catalogue of Rudolf Sturany's type specimens in the Naturhistorisches Museum Wien, Austria (NHMW): Red Sea gastropods, Zoosystematics and Evolution 93 (1), pp. 45-94 : 60

Nassa lathraia Sturany, 1900 Figure 12

Nassa lathraia Sturany, 1900a: 200-201; redescribed and illustrated in Sturany (1903), pages 224-225, plate II, figures 2a-b.

Type locality.

Station 130, "westlich von Kunfidah" [west of Al Qunfudhah, Saudi Arabia], 19°17'N, 39°37'E, 439 m.

Additional original localities.

Stations 48, 51, 54, 107, 114, 121, 127, 130 (439 - 748 m) (Central and Southern Red Sea; Table 1 ).

Type material.

Figured syntypes: NHMW 84203 (station 130; height: 6.6 mm, figured in Sturany 1903, plate II, figures 2a-b), NHMW 84205 (station 135): 1 specimen (figured in Sturany 1903, plate II, figures 1a-b). Further syntypes: NHMW 71640/O/745 (station 130): 2 specimens; NHMW 84196 (station 48): 2 specimens; NHMW 84197 (station 51): 3 specimens; NHMW 84198 (station 54): 5 specimens; NHMW 84199 (station 107): 2 specimens; NHMW 84200 (station 114): 5 specimens; NHMW 84201 (station 121): 1 specimen; NHMW 84202 (station 127): 1 specimen; NHMW 84204 (station 130): 12 specimens.

Original description.

Von den Stationen 48, 51, 54, 107, 114, 121, 127, 130 (439 - 748 m). Diese Form ist von Nassa munda durch die bedeutend spärlicher vorhandenen, jedoch schärfer ausgeprägten Querrippen unterschieden, zwischen denen die Spiralstreifung deutlich sichtbar wird. Mit Ausnahme der glatten Anfangswindungen tragen die Umgänge oben nächst der Naht eine besonders abgesetzte Körnchenreihe.

Höhe des Gehäuses circa 7 1/2, Breite circa 3 1/2 mm; Mündung circa 3 1/2 mm hoch und 2 mm breit.

Wie Nassa munda m. in der continentalen Zone gefunden, in Tiefen zwischen 439 und 748 m.

Translation.

From stations 48, 51, 54, 107, 114, 121, 127, 130 (439 - 748 m). Distinguished from Nassa munda by the much sparser, but more sharply pronounced axial ribs between which the spiral stripes are clearly visible. Except for the smooth initial whorls, the others bear a tubercled cord on their upper part next to the suture.

Shell height about 7.5, width about 3.5 mm; mouth about 3.5 mm high and 2 mm wide.

Like Nassa munda , it is found in the continental zone, at depths of 439-748 m.

Comments.

For discussion of relationships and nomenclature see under Nassa munda .

Figures

Figure 12. Nassa lathraia Sturany, 1900, Station 130 (Al Qunfudhah, Saudi Arabia, Red Sea). A-B, D-G, I. Figured syntype, NHMW 84203: front (A-B), right side (D-E), back (F), protoconch (G, I). C. Original figure by Sturany (1903). H. Original label of figured syntype. Scale bars: A-B, D-F: 1 mm, G, I: 0.2 mm.