DIAPHERIDAE PANHA & NAGGS, 2010

Sutcharit, Chirasak, Naggs, Fred, Wade, Christopher M., Fontanilla, Ian & Panha, Somsak, 2010, The new family Diapheridae, a new species of Diaphera Albers from Thailand, and the position of the Diapheridae within a molecular phylogeny of the Streptaxoidea (Pulmonata: Stylommatophora), Zoological Journal of the Linnean Society 160 (1), pp. 1-16 : 5

FAMILY DIAPHERIDAE PANHA & NAGGS FAM. NOV.

Type genus: Diaphera Albers, 1850 .

Diagnosis: Shell high spired and narrow or pupiform; whorls symmetrical about straight axis, apart from a portion of the last whorl, which is detached in Diaphera . Penis simple, long, and without a penial sheath or internal hooks.

Remarks: The Diapheridae is defined by the type genus Diaphera . On currently available evidence only Diaphera and Sinoennea Kobelt, 1904 are included in the Diapheridae . The shell form with a simple reproductive system, lacking a penial sheath and internal hooks, set Diaphera and Sinoennea apart from other streptaxoid taxa. Although no single morphological synapomorphy characterizing the Diapheridae has been identified, the robust, distinct, and basal position of the Diapheridae within the molecular streptaxoid clade presented below supports the distinct identity of this group.