V °1889 U '] PROCEEDINGS OF THE NATIONAL MUSEUM. 335 



Family TRIFOEID.E. 



Genus TRIFORIS Desha yes. 



Section MA8T0NIA Hinds. 



Triforis pulchella C. B. Adams. 



Collected at Station 2758, 90 miles southeast from Cape San Roque, 

 Brazil, in 20 fathoms, shelly bottom. 



Family CEKITHIID.E. 



Genus CERITHIUM Bruguiere. 



Cerithium semiferrugineum Lamarck. 



This species, which ranges throughout the Antilles and as far north 

 as St. Augustine, Florida, was collected at Port Castries, Santa Lucia, 

 and at Station 2758, off the Brazilian coast, in 20 fathoms. 



Family SEGUENZI1D.E. 



Genus SEGUENZIA Jeffreys. 



Seguenzia monocingulata Seguenza. 



Collected at Stations 2751, 2756, and 2700, in 391 to 1,019 fathoms, 

 mud and ooze; temperatures 37°.9 to 40°. 4 F. The southernmost 



st;il ion is 90 miles north from Ceara, Brazil, in south latitude 12° 07' 

 and west longitude 37° 17'. 



Seguenzia trispinosa Watson. 



Collected at Station 2754, in 880 fathoms, ooze, cast from Tobago, and 

 at Stations 2751 and 2700, with the preceding species. 



Family VEKMET1D.F. 



Genus VERMETUS Morch. 



Subgenus PETALOCONCHUS Lea. 



Petaloconchus irregularis Orbigoy. 



Abundant at the Abrolhos Islands, Brazil. 



Family LITOBINID.E. 

 Genus LITORINA Ferussac. 



Section MELARAPHE Muhlfeldt. 

 Litorina angulifera Lamarck. 



Abundant and large, and rather pale colored, at the Abrolhos Islands. 

 Of the two series of color markings those connected with the spiral 

 stria: were the least conspicuous. 



