Hoffmannola Strand, 1932

Dayrat, Benoît, Zimmermann, Sara & Raposa, Melissa, 2011, Taxonomic revision of the Onchidiidae (Mollusca: Gastropoda: Pulmonata) from the Tropical Eastern Pacific, Journal of Natural History 45 (15 - 16), pp. 939-1003 : 976-979

Hoffmannola Strand, 1932

Hoffmannola Strand, 1932: 194 .

Type species

Hoffmannola lesliei ( Stearns, 1892) by monotypy.

Remarks

Hoffmannola was created by Strand (1932: 194) as a new replacement name for Watsoniella Hoffmann, 1928 , a permanently invalid name because it is preoccupied by Watsoniella Berg, 1898 (Lepidoptera) .

Diagnosis

Dorsal notum without branchial gills. Dorsal papillae with no dorsal eyes. Two oral lobes fused medially. Hyponotal line present. Male genital opening median, superior to fused oral lobes. Intestine of type IV. Reno-pulmonary complex asymmetrical (left part significantly longer than right part). Marginal glands in body wall. Visceral cavity

divided longitudinally by a septum. Accessory gland in the penial complex absent. Rectal gland absent.

Remarks

Given that the onchidiid supra-specific phylogenetic relationships are still unknown ( Dayrat 2009; see Discussion), it is unclear whether the characters that have been traditionally accepted for Hoffmannola (e.g. Labbé 1934; Britton 1984) and are provided in the above diagnosis are synapomorphies, autapomorphies, or symplesiomorphies. Also, it is difficult to evaluate whether Hoffmannola is clustered within Onchidella , or whether both taxa are separate.