80 MARINE FAUNA OF ST. ANDREWS. 



Fara. 19. Eulimidae, H. & A. Adams. 

 Genus Eui.lMA, Iiisso. 

 Eulima bilineata, Alder. Op. cit. iv. p. 210, v. pi. 77. f. 8. 

 I n muddy debris in old shells from deep water. 



Fam. 20. Naticida, Swainson. 

 Genus Natica, Adanson. 

 Natica islandica, Gmelin. Op. cit. iv. p. 214, v. pi. 78. f. 1. 

 A single specimen from the fishing-boats. 



Natica catena, Da Costa. Op. cit. iv. p. 220, v. pi. 78. f. 4. 

 Common on the sandy bottom off the West Sands. The 

 ova occur abundantly in July and August. 



Natica Alder i, Forbes. Op. cit. iv. p. 224, v. pi. 78. f. 5. 

 Less abundant than the foregoing, on the same ground. 



Fam. 22. Velutinidae, Gray. 

 Genus 1. Lamellaria, Mont. 



LamrHaria persjricua, L. Op. cit. iv. p. 235, pi. 3. f. 6, 

 v. pi. 79. f. 2 & 2 a. 



Common under stones between tide-marks, especially in 

 nick-pools. The figure of the living specimen in Dr. Gwyn 

 Jeffreys's work (iv. pi. 3. f. 6) was copied from a coloured 

 drawing of my sister's. The colours of this species vary in a 

 remarkable manner, as shown in Plate III. figs. 2-10. 



Genus 2. Velutina, Fleming. 

 I 'elutina laevigata, Pennant. Op. cit. iv. p. 240, v. pi. 79. f. 4. 

 Frequent in the laminarian region, and on the West Sands 

 after storms ; occasionally under stones at the verge of low 

 water. 



