48 
THE NATURAL SCIENCE JOURNAL. 
“ verrucosus, Barnes 
“ gracilis, Barnes 
“ spatulatus, Lea 
“ pressus. Lea 
“ ebenus. Lea 
Margaritana complanata. Bar. 
“ marginata, Say 
rugosa. Bar 
“ deltoidse, Lea 
Anodonta Ferrusaciana, Lea 
“ Footiana, Lea 
“ imbecilis, Say 
“ lacustris. Lea 
“ opalina, Auth. 
“ edentula. Say 
Anaylus rivularis 
Aplexa hypuorum, Linn 
Amnicola lamosa, Say 
Cionella subcylindrica. Say 
Carychium exigunm, Say 
Ganeobasis livescens. Say 
Hyalinia arborea, Say 
Hyalinia fulva, Drap. 
Hyalinia minuscula, Binn. 
Helicodiscus lineatus. Say 
Helix multilineata, Say 
Helix profunda 
Helix (mesodon) thyroides. Say 
Helix hirsuta, Say 
Helicina orbiculata. Say 
Stenotrema monodon, Rackett 
Limnsea humilis, Say 
Limnjiea reflexa. Say 
Limntea ampla. Say 
Limnsea palustris, Say 
Limniiea caperata, Say 
Limnaea stagnalis, Linn. 
Limnaea marginata. Say 
Lioplux subcarinata, Say 
Melantha integer. Say 
Patula striatella, Anth. 
Pupa fallax. Say 
Pupa armifera. Say 
Planorbis trivolvis, Say 
Planorbis bicarmatus. Say 
Planorbis parvus. Say 
Planorbis complamatus, Say 
Physa ancillaria, Say 
Pbysa heterostropha, Say 
Physa gyrina, Say 
Patula alternata, Say 
Pamatiopsis lapidaria, Say 
Segmentina armigeria, 
Samatogyrus depressus, 
Sphaerium occidentale, 
Sphaerium sulcatum, Lam 
Sphaerium Jayanum, Pr. 
Succinea avara. Say 
Succinea ovalis, Gld. 
Vallonio pulshella. Say 
Valvata tricarinata, Say 
Valvata cincera, Say 
Vertigo ovata. Say. 
THE HISTORY AND USES OP MOLLUSKS 
R. E. Briggs. 
It is intended to consider each month some individual, 
species, genus, family, or class of the mollusca, in this con¬ 
nection. Additional notes are earnestly solicited. 
II.—MURICES.* 
T he Murex family, with its sub-family 
Purpura, forms one of the most 
beautiful and interesting branches of 
marine univalves for study. The ma¬ 
jority of the species are brightly colored, 
and many are very delicate and showy. 
Specimens are found in almost all tropic 
and sub-tropic waters, while a few forms 
can be obtained in temperate seas. In 
early geologic ages the carnivorous Pro- 
sobranchiates—the class to which the 
Murices belong—were, for the most part 
^For a more extensive cou.sideratioii of the subject, see 
Tiyon’s Manual of Conchology Vol. II., p. 43-5, and the 
Smithsonian Report for 1863, p. 385-403, where also are 
given very interesting essays ou the kindred dyes of ultra- 
marine and murexine. 
