fdoUusca of St. Andrews. 425 



rock-pools. The figure of the living specimen in Mr. Gwyu 

 JefiVeys'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. 



Genus 2. Velutina, Fleming. 

 Velutina Icevigata^ 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. 



Fam. 23. Cancellariidae, Forbes & Hanley. 



Genus 2. Teichotkopis, Broderip & Sowerby. 



Trichotropis borealts, Brod. & Sowerb. Ojj. cit. iv. p. 245, 

 V. pi. 79. f. 6. 



A single specimen from the stomach of a cod. 



Fam. 24. Aporrhaidse, Troschel. 



Genus Aporehais, Da Costa. 



Aporrhais pes-jjelecam, L. Ojo. cit. iv. p. 250, v. pi. 80. f. 1. 



Abundant on the West Sands after storms, and frequent in 

 the debris of the fishing-boats. 



Fam. 27. Buccinidse, Fleming. 



Genus 1. PuEPUEA, Bi-ugui^re. 

 Ptirjmra lapilbis, L. 0_p. cit. iv. p. 276, v. pi. 82. f. 1. 

 Veiy abundant between tide-marks on rocks and stones. 

 Varieties are common. 



Genus 2. Buccinum, L. 

 Buccinum undatunij L. Op. cit. iv. p. 285, v. pi. 82. f. 2-5. 

 Common in the living state (var. littoralis) in pools at the 

 East Rocks, especially where a stream of salt water rushes 

 through the seaweeds. This species spawns in October, 

 November, and the following months ; the yoimg are foimd 

 in swarms on the egg-cases in May. Frequent on the West 

 Sands after storms. 



Genus 5. Trophon, De Montfort. 

 Trophon truncatus^ Strom. Op. cit. iv. p. 319, v. pi. 84. f. 6. 



Not uncommon in the fishing-boats, and from the stomachs 

 of the cod, haddock, and flounder. 



Ann. d: Mag. N, Hist. Ser. 4. Vol. xni. 31 



