Tr 
Corneocyclas magellanicus, détroit de Magellan, 
Aligena borniana, Pacifique, 
—  pisum, détroit de Magellan, 
Rochefortia mabillei, id., 
— rochebrunei, id., 
Protocardia panamensis, Panama, 
Vesicomya donacia, id., mn. Spp , 
— (Archivesica mov. subg., type: V. gigas Dall), 
Tellina (Phyllodina mov. subg.) fluctigera, Panama, 
—  (Moœrella) chrysogona, Galapagos, 
Macoma (Psammacoma mov. subg.) hesperus, Panama, 
Sphenia subequalis, détroit de Magellan, 
Corbula (Cuneocorbula) ira, Panama, 
Xylophaga mexicana, Acapulco, 
Pholadidea (Penitellu) minuscula, Panama, 
Lyonsia panamensis, id., 
—  pacifica, Pacifique. 
Poromya perla, Panama, 
— (Dermatomya) equatorialis, id., 
— - chilensis, Chili. 
Cetoconcha smithii, Acapulco, 
Cuspidaria panamensis, Panama, 
— (Cardiomya) pseustes, id,, 
_— — planetica, Californie, 
Myonera garretti, Panama, n. nspp., 
BRACHIOPODES 
Discinisca (Pelagodiscus mov. sect., type: D. atlantica King), 
Hemithyris strebeli m. sp., Pacifique, 
Basiliola nov. gen., type : Hemithyris beecheri Dall. 
Ed. L. 
Reports on the scientific results of the Expedi- 
tion to the Eastern Tropical Pacific, in charge of AL. 
Agassiz, by the U.S. S. « Albatross », from October 1904 
to March 1905, XV, — Ueber die Anatomie und Syste- 
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