P. 
130 
phagus increases in size and the hole is intersected at 
intervals by the above mentioned, on the upper side con- 
cave, on the lower side convex, bases. 
caribeus Ph. station: — ? —; habitat: Antillae; 
Mérch pg. 56! 
dactylus Sow. (Lithodomus Cuv., L. antillarum d’Orb., 
L. corrugata Phil.) station: in life madrepores; habi- 
tat: Antillae; Mérch pg. 55! Virgin-Isl.; Swift! Cuba; 
Martinique ; Guadeloupe; d’Orb.! remark: Moll. de Cuba 
2—332 pl. 28 fig. 12—13. 
fuscus Gml. (Mytilus brunneus Soldr., Mod. cinnamomea 
var. Lmk., Mod. Favannii Pot. & Mich., Botula Mérch) 
station: in life madrepores; habitat: Antillae; Morch 
pg. 55! Guadeloupe; Beau pg. 22! Virgin-Islands; Swift! 
Cuba; Martinique; St. Domingo; Jamaica; d’Orb.! St. 
Thomas; Jamaica; Lmk.! St. Thomas; St. Croix; Tor- 
tola; Krebs! 
niger Lister. (Pholas Lister, L. antillarum Phil.) station: 
in madrepores; habitat: Antillae; Moreh pg. 56! Gua- 
deloupe; Beau pg. 22! Cuba; Martinique; St. Domingo; 
St. Lucy; d’Orbig.! Virgin-Islands; Swift! Krebs! re- 
mark: Moll. de Cuba 2—332 pl. 28 fig. 10—11;, the 
Lethophagi are anly found alife in the madrepores as 
long as these are alife. 
Dreisenia Beneden. 
Rissei ? ; station: in brackish water between the 
roots of Avicennia; habitat: Crabisland; Riise! Porto- 
Plata; Krebs! 
Pinnacea. 
Pinna. -L. 
muricata L. (P. nobilis Ch., P. seminuda Lmk., Pen- 
ee 
