< Monophorus erythrosoma
Monophorus erythrosoma
(Bouchet & Guillemot, 1978)
Norway to Canarias, Azores to Mediterranean.
Predator on sessile preys in the infralittoral-circalittoral.
Original taxon: Triphora erythrosoma.
 
The second spiral cord appears later than #1 and #3; the protoconch is bicarinate; the fourth spiral cord, only visible on the last whorl, is granulose; the first basal cord is granulose, the second one smooth. In adult specimens, some additional cords appear behind the peristome. – Source: Chiave di determinazione dei Triphoridae mediterranei, Gruppo Malacologico Livornese.

26m deep, Punta de la Mona, east of La Herradura, Granada, Andalucia. 8,8mm.
The animal is red, « spotted with yellow » (Bouchet & Guillemot); more precisely yellow with an intense red spotting. Slightly subadult from the same spot, with some banded pattern on the base. 5,4mm.
Same spot. Same pattern. 6,55mm.
Scale of the proto: interval 0,1mm.
The protoconch is bicarinate, and the second row of nodules appears later than the rows 1 and 3, the fourth spiral cords that appears on the last whorl is granulose, the first basal row is granulose but the second one is smooth. Presence of additional cords near the peristome: this is Monophorus erythrosoma. 30m deep, La Mona. 6,5mm.
Clockwise:
Protoconch bicarinate (k1, k2);
4th spiral cord granulose (c4);
First basal cord granulose (b1), second one smooth (b2);
At least one additional cord near the peristome (+).
 
45m deep, Cannizzaro, Catania, E. Sicily.

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