Abstract
We report a new Iberian hygromiid, Candidula corbellai n. sp., and describe its conchological and anatomical characteristics. This new species is compared with two other Iberian endemic species, Candidula camporroblensis and C. rocandioi, which present similarities in the reproductive system, such as the long flagellum. The shell of the new species is compared with specimens of the type series of these taxa. The reproductive system of C. corbellai n. sp. is distinguished from C. camporroblensis by its longer male part, although the flagellum is shorter than the penis and epiphallus together and it has a long bursa copulatrix with respect to its duct, which is shorter. The epiphallus and the bursa copulatrix duct are longer in C. rocandioi than in C. corbellai n. sp. A geographical distribution map of the three species in the Iberian peninsula is shown.
Highlights
A series of specimens from a small terrestrial gastropod, collected recently in the north of Catalonia, could not be identified by their shell
The studies used for morpho–anatomical comparison of the three taxa are Fez (1944), where C. camporroblensis is described, Ortiz de Zárate (1950, 1991) where the author describes C. rocandioi and studies the reproductive system of both species, Aparicio (1982), whose study details the differences between several Iberian hygromiids based on their anatomical characteristics, Manga (1983) who studies C. rocandioi, and Faci (1991) and Martínez–Ortí et al (2000) whose study investigated the conchological and anatomical characteristics of the reproductive system of C. camporroblensis
Checking only the shell could lead to errors in differentiating between different genus of hygromiids, such as Helicella Férussac, 1821 or Xerocrassa Monterosato, 1892, present in Catalonia, or other Candidula species living in areas relatively close to the the Iberian peninsula
Summary
A series of specimens from a small terrestrial gastropod, collected recently in the north of Catalonia, could not be identified by their shell. The shell morphology, the reproductive system anatomy, the radula, the jaw and their distribution area are described, drawn and compared with the species of Candidula that are most similar regarding the reproductive system, C. camporroblensis Fez, 1944 and C. rocandioi (Ortiz de Zárate, 1950), both of which have a long flagellum.
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