74 Panama Shells. 



Station. We found this species under and between stones at 



extreme low water mark. 



Habitat. Coast of Peru ; Capt. Skiddy ! Barnes. 



Quito I. near Guayaquil; Don Pedro Abadea ! 



Barnes. 



Unknown; Wood. 



Acapulco ; Humboldt and Bonpland ! Valenciennes. 

 "South Sea, Pacific Ocean, shore of Mexico, at 



Acapulco :" Kiener. 

 Payta, Peru ; Cuming ! Eeeve. 

 Peru; Jay. 



Acapulco ; Jay, (a var.) 

 Mazatlan ; Melchers ! Menke. 

 Panama ; C. B. A. ! 

 Eight specimens were collected on the reef. 



67. Ulonoceros torevidentatuni. 



Synonymy. 



Buccinum brevidentatum Wood Ind. Test. Supp. pi. 4. f. 10. 1828. 



Purpura cornigera Blainv. in Nouv. Ann. Mus. I. 213. 



pi. 9. f. 10. Mar. 1832. 

 Kiener Iconog. p. 123. pi. 39. f. 92. 

 ocellata Kiener Iconog. p. 124. pi. 37. f. 86. 



junior. 



. maculata Gray in Beech. Voy. p. 125. 1839. 



Monoceros brevidentatum Sowb. Conch. 111. pi. 79. f. 4. 



Orb.Voy.Amer.Merid.Moll.p.441. 1843. 



Desh. in Lam. An. sans Vert. X. 123. 



No. 9. 1844. 



Reeve Conch. Icon. pi. 1. f. 4. Sept. 1846. 



Station. In crevices of rocks at low water ; Cuming ! Keeve. 

 We found this species in the crevices and on the sides of 

 rocks and stones, mostly at and above half tide level. 



Habitat. Unknown ; Wood. 



Mazatlan; Botta! Blainville. 



