SHELLS OF SOUTH AMERICA, 85 
755. MyTiLus soLENIFoRMIS, d’Orb. Voy. v. 649. 
t. 8b. £. 17; 18. B.M. 
Peru ; Payta. 
Mytilus falcatus is a smooth Mytilus. 
M. elongatus, M. chorus, M. Patagonicus, M.Platensis, M. So- 
lisianus, M. Darwinianus, M. ovalis, M. Americanus, and M. 
granulatus, are costated Myitili. 
M. Guyanensis is a smooth Modiola. 
M. Chenuanus, M. Rodriguezii, and M. viator, are costated 
Modiole. 
M. soleniformis is the type of a new genus. 
756. LirHopomus Paragonicus, d’Orb. Voy. v. 650. 
285.4. 19; 20. B.M. 
Patagonia; South of Rio Negro (Voy. no. 107) 
(rock and tube). 
757. LirHopomus Peruvianus, d’Orb. Voy. v. 561. B.M. 
Peru; Callao; Payta. In coral holes, lined with 
shelly matter near the mouth. 
758. LirHopomus Inca, d’Orb. hs vy. 561. B.M. 
Peru; Payta. 
LIithodomus Peruvianus and L. Pratap both line the 
upper part of the cavity they inhabit with a shelly tube. L. Pe- 
ruvianus lives in coral, and L. Patagonicus im mud. LL, Inca 
searcely appears to differ from L. Peruvianus. 
Fam. 9. LIMIDZ. 
_759. Lima ANGULATA, Sow., d’Orb. Voy. v. 653. 
Ecuador; Caraccas. 
760. Lima Pactrica, d’Orb. Voy. v. 654. 
Lima arcuata, Sow., not Geinitz. 
Ecuador, Guayaquil, and Panama. 
