Occasional Papers of the Museum of Zoology 35 
Helicna (Tristramia) zephyrina elatior “von Martens” 
Crosse and Fischer (1893).’—Eleven specimens from trees in 
the lowland forests (H, I, b) and the savannah forests (H, 
Ill, b) ; from the ground in the savannah forests (H, III, a), 
and from the burnt areas (H, II, b). This is a rather well- 
marked race of H. zephyrina, although it occurs with the 
typical form. In shape it is practically identical with the more 
northern H. chrysocheila Binney (1851), but the latter usu- 
ally (not always) differs markedly in color and appears quite 
distinct. At least at present, it appears best to retain elatior 
as a race of zephyrina, which occurs with the typical form, and 
simply approaches, in shape, the other species. Specimens 
measure: 
Altitude Greatest diameter Heightaperture Diameter aperture 
12.1 mm. 103 (12.5 mim.) 49 (5.9 mm.) 53 (7.0 mm.) 
11.2 mm. 94 (10.5 mm.) 47 (5.3 mm.) 55 (6.2 mm.) 
10.6 mim. 100 (10.6 mm, ) 52 (5.5 mm.) 57 (6.0 mm.) 
Helicina (Tenuis) tenwis Pfeiffer (1849). 
H Iindent Pfeiffer (1849). 
Hi. vernalis Morelet (1849). 
Fifty-eight adults; from leaves of trees, vines and shrubs 
in lowland jungle (H, I, b) and on ground (H, III, a) and 
on leaves of shrubs and cacti (H, III, b) in the savannah for- 
ests. The specimens vary somewhat in size; extremes measure: 
Altitude Greatest diameter Heightaperture Diameter aperture 
9.7 mm. 100 (9.7 mm.) 48 (4.7 mm. ) 55 (5.3 mm.) 
9.5 mm. IOI (9.6 mm.) 54 (5.1 mm.) 60 (5.7 mm.) 
7.7 mm. 107 (8.2 mm.) 61 (4.7 mm.) 66 (5.1 mm.) 
1“Filatior’ as used by von Martens (1890) is a one-word descrip- 
tion and not a name. This is the reason why he puts H. berendti Pir. 
as if it were a synonym under another of his short descriptions, “exca- 
vatoangulata.” When he actually wished to denote or name a sub- 
species, he placed the name in italics and followed it by the name of 
the author or the letter “n.’ Crosse and Fischer (1893) have since 
changed some of these descriptions into true names, as, for instance, 
in the present case. 
