NOTES ON THE MOLLUSC A OF ST. ANDREWS 45 



SESSIONAL PAPER No. 39b 



Margarita cinerea (Couthany). 



Dredged in 20-30 fathoms off the Wolves, Aug. 17. 



In 17 fathoms off Robbinston Sept. 4. 

 Margarita unduluta, Sowerby. 



In 5-10 fathoms off the Wolves, Aug. 17. 



Off Robbinston in 15 fathoms, Sept. 5. 

 Margarita helicina (Fabricius) 



In littoral zone at St. Andrews' Point, Sept. 11. 

 Scalaria groenlandica Perry. 



In 10-15 fathoms on gravel bottom, off Robbinston, Aug. 2. 

 Lunatia heros (Say). 



Common in littoral zone. 

 Lunatic heros triseriata (Say). 



Off Robbinston in 5-10 fathoms, Sept. 11. 

 Natica clausa, Broderip and Sowerby. 



Dredged off the Wolves in 50 fathoms on a Sandy bottom, Sept. 10. 



Off the Wolves in 20-30 fathoms, Aug. 17. 

 Crucihulum striatum (Say). 



Dredged 17 fathoms off Robbinston, Sept. 4. 

 Littorina palliata (Say). 



In littoral zone at Biological Station, Sept. 10. 

 Littorina litorea (L). 



Common in littoral zone. 

 Littorina rudis (Maton) . • 



Littoral zone at Biological Station and Woodward's Cove. 

 Velutina undata (Brown). 



In 15 fathoms off Robbinston, Sept. 5. 

 Trichotropis borealis Broderip and Sowerby. 



Off Robbinston, Sept. 4. Dredged in 20-30 fathoms off the Wolves, Aug. 17. 

 Aporrhais occidentalis Beck. 



Dredged in 20-30 fathoms off Wolves, Aug. 17. 

 Purpura lapillus (L). 



Common in littoral zone. 

 Tritia trivittata (Say). 



Off Joe's Point in 5 fathoms. 



Off Robbinston on gravel bottom in 10-15 fathoms, Aug. 20. 

 Buccinum undatum L. 



Common in littoral zone. 

 Neptunea decemcostata, Say. 



Common in the sublittoral zone and at the lowest limits of the littoral zone. 

 Sipho stimpsoni (Mdrch). 



Near Green Island in 5-10 fathoms, Sept. 10. 

 Sipho pygmaeus (Gould). 



Dredged off Robbinston in 10-15 fathoms, Aug. 20. 



