TL;DR: The results suggest that the phase of sculptural increase yielding the primitive pattern is followed by a selective phase, preserving or increasing the relief of the probable most functional cords.
TL;DR: Three species are here described as new in the genus Muricopsis, which is reported from West Turkey and Cyprus, in the eastern Mediterranean Sea.
Abstract: Extensive material originating from different sources is currently examined by the author for a review of Mediterranean and northeastern Atlantic Muricidae. As a result, three species are here described as new. Ocenebra brevirostra n. sp. is the species usually figured as O. torosa (Lamarck, 1816) in literature. It is reported from the Atlantic coast of Morocco, and recognized as distinct from O. erinaceus (Linnaeus, 1758). Ocinebrina leukos n. sp. is a species with a uniformly white or dirty-white, lanceolate, heavy shell with a high spire, broad axial ribs, and a small, paucispiral protoconch. It is reported from Lanzarote Island, in the Canary Archipelago, and is compared with O. edwardsi (Payraudeau, 1826) from which it differs in being larger and very stable in form, sculpture and colour, unlike the highly variable shell morphology of O. edwardsi. ?Muricopsis cevikeri n. sp. is included in a group of species whose shell has reduced or obsolete second abapical cord, and is doubtfully included in the genus Muricopsis Bucquoy & Dautzenberg, 1882. It is reported from West Turkey and Cyprus, in the eastern Mediterranean Sea.
TL;DR: The most basal Ocenebrinae genus is Jsowerbya as discussed by the authors, which consists of three species from the Eocene of the Paris and Hampshire basins.
TL;DR: The muricid subfamily Muricopsinae includes a total of 88 named taxa, of which 7 4 are considered valid and 12 new species described herein, from either fossil or living material in the western Atlantic.
Abstract: The muricid subfamily Muricopsinae includes a total of 88 named taxa, of which 7 4 are considered valid. This number includes 12 new species described herein, from either fossil or living material in the western Atlantic. There are ten genus groups recognized: six genera and four subgenera, with a maximum of 20 to a minimum of one species included in each. New species described include three from the Early Miocene Chipola Formation: Muricopsis (Muricopsis) shirleyae, ?Murexsul nanissimus, and Murexiella (Murexiella) parvula. There are four Recent species: Muricopsis (Muricopsis) josei and Muricopsis (Muricopsis) marcusi, both from Brazil; Muricopsis (Muricopsis) perexigua, from the Caribbean and the Bahama Islands; and Favartia (Favartia) barbarae, from off Yucatan, Mexico. The other new species are: Murexsul comptulus, Waccamaw Formation, South Carolina; Murexsul amphilogos, Moin Formation, Costa Rica; Murexiella (Murexiella) petuchi, Pinecrest beds, Florida; Murexiella (Murexiella) stephensae, (?)Tamiami Formation, Florida; and Favartia (Caribiella) carmenae, (?)Medias Aguas Formation, Veracruz, Mexico. An additional nine forms are cited only as "sp.," making a total of 83 taxa treated systematically in this report.