154 Dr. W. C. M'lntosh on the 



Lineus sanguineus, Jens Rathke. Op. clt. p. 188, pi. 5. f. 2. 

 Somewhat less commou than tlie former, in the same sites. 



Lineus biUneatus, Dclle Chiaje. Op. cit. p. 191, pi. 6. f. 1. 

 Not uncommon between tide-marks, and in deep water. 



Genus 8. MiCKURA, Ehrenberg. 

 Micrura fusca, M'Intosh. Op. cit. p. 196, pi. 6. f. 3. 

 Common in the coralline ground amongst old shells. 



Micrura fasciolata, Ehrenberg. Op. cit. p. 197, pi. 6. f. 2. 



Not rare in fissures of the rocks between tide-marks, and 

 occasionally from deep water. The uniformly tinted variety 

 frequents the latter. 



Micrura purpurea, Dalyell. Op. cit. p. 200, pi. 7. f. 3. 

 Occasionally in the same localities. 



Fam. 3. Carinellidae. 

 Genus 10. Caeinella, Johnst. 



Carinella anmdata, Montagu. (9^?. cit. p. 203, pi. 7. f. 5, 



& pi. 8. 

 Common between tide-marks, and in deep water amongst 

 shells. 



Fam. 4. Cephalotrichidae. 



Genus 12. Cephalothrix, ffirst. 



Cephalothrix linearis, Jens Rathke. Op. cit. p. 208, 

 pi. 4. f. 4 & 5. 

 Abundant under muddy stones between tide-marks. 



Subclass CH^TOGNATHA. 



Genus Sagitta, Slabb. 



Sagitta hipunctata, Qnoy & Gaimard (?) , Krohn. 



Vast numbers were found on the West Sands, after a 

 severe storm, in January 1867. They were scattered amidst the 



