Naesiotus christenseni (W. B. Miller & Reeder, 1984)

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: BULIMULIDAE

ESPÉCIE: Naesiotus christenseni (W. B. Miller & Reeder, 1984)

Tamanho médio: 17 mm

Ocorrência: Estados Unidos (Arizona)

Localidade tipo: Estados Unidos, “Pima Co., Arizona; north end of the Santa Rita Mountains, in large rockslide on left bank of south fork of Sycamore Creek, ca. 100 meters upstream from Sycamore Spring”

Altitude: 1300 m

Nome original: Rabdotus christenseni W. B. Miller & Reeder, 1984

Etimologia: o nome da espécie é uma homenagem ao zoólogo norte americano Carl C. Christensen, especialista em moluscos terrestres

Descrição original:  

(W. B. Miller & Reeder, 1984) “Shell small, umbilicate, slender, the diameter about one-half of the height; rather thin, rib-striate, the striae mostly white to tan, on a tawny or white mottled ground, slightly glossy. Embryonic whorls 2 in number, rounded with strong, closely-spaced, axial riblets; faint traces of closely set, fine, spiral threads visible in the interstices of the axial riblets of the first whorl but absent on the second whorl. Post-embryonic whorls bearing irregularly-spaced growth ribs, with occasional minute pits and traces of scattered, fine, spiral striae. Peristome slightly reflexed, the ends joined by a thin parietal callus.“

Fotos: (1) W. B. Miller & Reeder, 1984: HOLOTYPE CAS 037525; (2,3) Naesiotus christenseni (W. B. Miller & Reeder, 1984), observação iNaturalist 221481147, crédito: Jeff Sorensen, “N flank of Colossal Cave Mountain Park, Pima County property. Some live estivating snails and a lot of shells”, Arizona, viii.1922

Figura: W. B. Miller & Reeder, 1984: (espécime à esquerda) Naesiotus nigromontanus (Dall, 1897), WMB 7190; (meio e à direita) Naesiotus christenseni, HOLOTYPE CAS 037525

Fontes:

Descrição original: (como Rabdotus christenseni W. B. Miller & Reeder, 1984) Miller, W. B. & Reeder, R. L. (1984). A new species of Rabdotus (Gastropoda: Pulmonata: Bulimulidae) from Arizona. Bulletin of the Southern California Academy of Sciences. 83(2): 106-109., disponível online em https://www.biodiversitylibrary.org/page/34161598
página(s): 106, fig. 1

Thompson, F. G. (2011). An annotated checklist and bibliography of the land and freshwater snails of México and Central America. Florida Museum of Natural History Bulletin. 50(1): página(s) 1-299

MolluscaBase: https://molluscabase.org/aphia.php?p=taxdetails&id=1064254