(Gastropoda Pulmonata: Streptaxidae ). Bulletin De L'jnstitut Royal Des Sciences Natureli Es De Belgique, Biologie, 64: 71-97
BULLETIN DE L'INSTITUT ROYAL DES SCIENCES NATURELLES DE BELGIQUE, BIO LOG! E, 67: 5 ~ 30 , 1997 BULLETIN VAN HET KONINKLIJK BELGISCH INSTITU UT VOOR NATUURWETENSCHAPP EN, BIOLOGIE, 67: 5-30, 1997 Dr William ADAM's iconography of Central and West African Gulella species (Gastropoda Pulmonata: Streptaxidae). Part 1 : nominal taxa by A.C. VAN BRUGGEN & J.L. VAN GOETHEM Contents Parks of Congo, identified by Dr ADAM) is shown to be more extensive than originally known. Gulella excruciata CONNOLLY, Abstract 5 1931 , is considered a synonym of Ennea decussatula PRESTON, Resume 5 1913. The following nominal taxa are illustrated (in seven cases Introduction 6 by type material, indicated by an *) and treated: Gulella arthur!*, Abbreviations used 6 G. avakubiensis, G. bistriplicina, G. brevis, G. camerani, G. cara, The genus Gulel/a L. PFEIFFER, 1856 6 G. chapini, G. coarti, G. conospira, G. decussatula, G. dissem Review of the species illustrated 8 inata*, G. haullevillei, G. lamyi*, G. lessensis, G. masisiensis, G. Gulella arthur! (DAUTZENBERG, 1890) 8 mikenoensis*, G. opoboensis*, G. osborn!, G. planidens, G. pollone G. avakubiensis PI LSB RY, 19 19 9 riana*, G. pupa, G. sanA:uruensis*, G. se.;r:dentata, G. socialis, G. G. bistriplicina PILSBRY, 1919 9 ugandensis, and G. vicina mecliafricana. The following subspecies G. brevis (THI ELE, 1911) I 0 and/or varieties are synonymous with their respective nominal G. camerani (POLLONERA, 1906) II species: G. conospira polynematica, G. masisiensis pafatidens G. cara PILSBRY, 1919 12 and G. opoboensis liberiana. Attention is drawn to summary G. chapin! PI LSBRY, 191 9 12 radula data for G.
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