Unio (Monocondylea) fransciscana, S. Moricand, 1838

Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 121

fransciscana, Unio (Monocondylea), S. Moricand, 1838: 145 , pl. 3 figs 14-17.

Type locality: [ Brazil, Bahia] le fleuve S. Francisco [Blanchet]. Holotype: MHNG-INVE-91235 (1) ( Unionidae ) [ Figs 20-23 ].

– Remarks. Moricand senior wrote “je n’en ai reçu qu’un seul individu”, thus the pair of shells found is the holotype. One valve in the USNM collection (USNM 86333), although with a label written by Moricand senior, appears to have been sent at a later date, originating from a further shipment that Moricand received from Blanchet; this material is thus not considered as type material.

Figures

Figs 14-31. Planorbidae, Unionidae, and Helicinidae. (48-53) Planorbidae. (14) Drepanotrema cimex (S. Moricand, 1838), syntype, MHNG-INVE-86802 (D = 6.03). (15-16) Drepanotrema depressissimus (S. Moricand, syntype, MHNG-INVE-86940 (D = 8.99). (17-19) Uncancylus concentricus (d’Orbigny, 1835), syntype of Ancylus barilensis S. Moricand, 1846, MHNG-INVE-87402 (D = 7.49). (20-23) Unionidae. (20-23) Monocondylaea franciscana (S. Moricand, 1838), holotype, MHNG-INVE-91235 (D = 39.5). (24-31) Helicinidae. (24-27) Helicina caracolla (S. Moricand, 1836), syntype, MHNG- INVE-91246 (D = 15.2). (28-31) Helicina haematostoma (S. Moricand, 1838), syntype, MHNG-INVE-91253 (D = 8.75).