Megalobulimus lopesi sp. n., uma nova espécie de Pulmonata terrestre da Mata Atlântica brasileira (Mollusca, Gastropoda, Megalobulimidae)

Re-characterization of the Red-lip Megalobulimus (Gastropoda: Strophocheilidae) from Peru with description of a new species

“…The shell of M. separabilis is very different from those of other Megalobulimus, but some features of the genital system of this species are shared with other species of the genus. The shape of the penis of M. separabilis is similar to that of M. parafragilior, but M. parafragilior has a prominent epiphallus and an external diverticulum on the free oviduct (LEME & INDRUSIAK 1990). The internal diverticulum is a character that has not been described before for any species of Megalobulimus.…”

“…From the above, we conclude that M. capillaceus The shape of the penis (cylindrical), the vagina longer than the free oviduct, and the spire measuring 1/7 of the height of the shell are the main differences between M. capillaceus and the other red-lipped Megalobulimus from Peru. In genitalic features, M. capillaceus is more similar to M. oblongus, M. riopretensis Simone & Leme, 1998, M. mogianensis Simone & Leme, 1998, M. parafragilior Indrusiak, 1990 andM. abbreviatus (Bequaert, 1948), but differs from them in the shape of the diverticulum of the free oviduct (bulb-like) and in the presence of two flagella (except for M. abbreviatus).…”

Recharacterization of Strophocheilus miersi Da Costa (Mollusca, Pulmonata, Strophocheilidae)

“…A calibrose vein is also present in S. miersi as well the left side of the roof more extensive than the right with more pigmentation and vascularization. The presence of "lamellas obliquely orientated for the anterior and right side", that conducted the waste products to the urinary gutter, were found and described by HYLTON-SCOTT (1939) in Strohocheilus lorentizianus (Döering, 1879), later included in Megalobulimus Muller, 1878 by LEME & INDRUSIAK (1990).These stuctures were also observed in Mirinaba antoninensis (Lange-de-Morretes, 1952) by LEME et al (1979) and now in S. miers. LEME (1973) called "the incipient primary ureter" the rounded vesicle-like expansion situated next to the excretory opening wich was characterized by BARROS- ARAUJO (1971: 427).…”

Aspects of biology of Megalobulimus paranaguensis (Gastropoda, Acavoidea) in the coastal plain of the Brazilian southeast

“…This biome is one of the richest in the world in terms of numbers of species, but unfortunately it has been gradually destroyed (Mansur & Leme, 1996;Myers et al, 2000). The populations of many species of Megalobulimus from this area, for instance M. fragilior (Ihering, 1901), M. parafragilior Leme & Indrusiak, 1990, M. grandis (Martens, 1885, M. lopesi Leme, 1989, M. proclivis (Martens, 1888 and M. paranaguensis (Pilsbry & Ihering, 1900), have been reduced, and some may be threatened (Leme, 1989;Leme & Indrusiak, 1990;Mansur & Leme, 1996;Fischer & Colley, 2005;. Officially, the Brazilian authorities only list one species of Megalobulimus in their list of threatened species, M. cardosoi (Morretes, 1952), which is endemic to the state of Alagoas, and is critically endangered (Santos et al, 2015).…”