MOLLUSCA. 47 



Defracia gracilis, Mont. Cumbrae. 



Pleurotoma nebula, Mont. Cumbrae. 



septangularis, Mont. Cumbrae. 



turricula, Mont. Cumbrae. 



Cyprsea Europsea, Mont. Cumbrae. 



Cylichna nitidula, Lov. Cumbrae. 



acuminata, Br. Cumbrae. 



cylindracea, Lov. Cumbrae. 



Utriculus mamillatus, Phil. Cumbrae. 



umbilicata, Mont. Cumbrae. 



truncatula, Br. Cumbrae. 



oblusata, Mont. Cumbrae. 



Accra bullata, Mull. Cumbrae. 



Actaeon tornatilis, L. Cumbrae. 



Scaphander lignarus, L. Cumbrae. 



Phyline scabra, Mull Cumbrae. 



aperta, L. Loch Ryan. 



Melampus bidentata, Mont. Cumbrae. 



SUB-CLASS NUDIBRANCHIATA. 



Doris tuberculata, Cuvier. Common. On stones between tide-marks. 



Johnstoni, Alder & Hancock Moderately common. On stones between 



tide-mark. 



repanda, A. & H. K. At low water, 



planata, A. & H. ; D. Tes- 



tudinaria, Risso. B. At extreme low water, 



aspera, A. & H. Common. On Laminai'ia saccharina and 



between tide-mark, 

 bilamellata, Linn. Moderately common. On stones at low 



water, 

 pilosa, MulL Moderately common. On stones at low 



water. 

 Goniodorio, Forbes. 



nodosa, Mont. Common. Dredged, and at low water. 



Triopa, Johnston. 



clavigeo, MiilL Common. Dredged, and between tide- 



mark. 

 ^Egirus, Love*n. 



punctiluccus, D'Orb. Moderately common. Under stones at 



very low water. 

 Polycexa, Cuvier. 



quadrilineata, Mull. Common. On Laminaria. 



ocellata, A. & H. Moderately common. Under stones at 



low water. 

 Ancula, Lov^n. 



cristata, Alder. Moderately common. On stones at low 



water. 

 Tritonia, Cuvier. 



Hombergii, Cuv. Dredged, and at low water, 



plebeia, Johnston. Common. On stones at low water. 



