Macroceramus angulosus Gdl. 
Cylindrella (Anoma) torquata Mor. 
inermis Gdl, 
amplus Gdl, 
minor Arango. 
elaudens Gdl. 
festus Gdl. 
Blaini Arang. 
Arangoi Pfr. 
costulatus Gdl. 
crenatus Gdl. 
variabilis Pfr. 
Paivanus Pfr. 
costellaris Gdl. 
nigropietus Gdl, 
— Sauvalleana Gdl. 
decolorata Gdl. 
irrorata Gdl. 
erenulata Gdl, 
acus Pfr. 
(Thaumasia) obliqua Pfr. 
(Collonia) Ellioti Poey. 
(Gongylostoma) subita Poey. 
vincta Gdl. 
adumta Pfr. 
Lavalleana d’Orb. 
laevigata Gdl. 
perlata Gdl. 
ventricosa Gdl, 
producta Gdl. 
elara Wright. 
concereta Gdl. 
eristallina Wright 
Sowerbyana Pfr. 
Oviedoiana d’Orb. 
Shuttleworthiana Poey. 
strangulata Poey. 
Fabreana Poey. 
Vignalensis Wright. 
violacea Wright, 
nubila Poey. 
263 
Cylindrella (Gongylostoma) trila- 
mellata Pfr. 
Humboldtiana Pfr. 
scaeva Gdl. 
striatella Wright. 
arcustriata Wright, 
soluta Pfr. 
elegans Pfr. 
planospira Pfr. 
Presasiana Pfr. 
capillacea Pfr. 
volubilis Mor. 
notata Gdl. 
illamellata Wright. 
albocrenata Gdl. 
Poeyana d’Orb. Florida, 
Gareiana Wright, 
variegata Pfr, 
Heynemanni Pfr. 
fortis Gdl. 
fumosa Gdl, 
discors Poey. 
affınis Pfr. 
lateralis Paz. 
brunnescens Gdl. 
erispula Pfr. 
lirata Jimeno, 
Coronadoi Ar, 
Blainiana Gdl. 
Sagraiana Pfr, 
integra Pfr. 
Guirensis Gdl. 
fusiformis Wright. 
Artemisiae Gdl, 
mixta Wright. 
interrupta Gdl. 
intusmalleata Gdl. 
uncata Gdl. 
geminata Pfr. 
ornata Gdl. 
scabrosa Gdl, 
