Shells small to very large, spindle-shaped, with an elevated spire; anterior siphonal canal present; whorls slightly to very convex; operculum thick, round posteriorly, clawed anteriorly.
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Aptyxis Troschel, 1868:The genus is monospecific. Shell medium-sized, fusiform, with a turreted spire slightly longer than the body whorl; whorls angular, vertical above the suture, sloping below; sculpture of conspicuous orthocline folds, slightly weaker on the subsutural ramp than farther down, and crossed –and carved – by numerous spiral furrows; aperture ovate; labrum spirally striated inside, with a small but noticeable posterior anal notch; anterior canal as long as the aperture, open; columella smooth, slightly twisted nateriorly; colour brownish more or less pronounced, whit a white band on the vertical part of each whorl. |
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Pseudofusus Monterosato, 1884:The genus includes all the species listed under the genus Aegeopseudofususus Russo, 2017, and all the mediterranean members, small or medium-sized, of the genus Pseudofusus Rafinesque, 1815. It includes also Gracilipurpura Jousseaume, 1880. Based on the molecular studies conducted by Fassio & al.(“A molecular framework for the systematics of the Mediterranean spindle-shells (Gastropoda, Neogastropoda, Fasciolariidae, Fusininae)”, Mediterranean Marine Science vol. 23(3) of june 2022), “ the pattern is suggestive of a single monophyletic radiation of small Mediterranean pseudofususines, for which the name Pseudofusus Monterosato, 1884 must be used. » |
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Tarantinaea Monterosato, 1917:« I propose this sectional name for the common species in the Mediterranean, referred by custom to the genus Fasciolaria, whose type is F. tulipa, L. different and exotic. » – T. A. di Monterosato: “Molluschi viventi e quaternari raccolti lungo le coste della Tripolitania”, Bollettino della Società zoologica italiana ser.3 vol.4, Roma 1917, p.19-20. – The genus includes no more than two species, only one of which being extant; it is characterizd by a spire equal to the half of the total shell length, an anterior canal as long as the aperture, and carinate whorls (the other species is Murex fimbriatus in Brocchi: Conchiologia fossile subapennina vol.2, Milano 1814, plate viii fig.8). |
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