88 MAUINE FAUNA OF ST. ANDREWS. 



Polycera Lessoni, D'Orbigny; A. & H. B. Nud. M. fam. 1, 



pi. 24. 



On a laminarian blade after an October storm ; one spe- 

 cimen. 



Genus 6. Ancula, Loven. 



Ancula cristata, Alder; A. & H. B. Nud. M. fam. 1, 

 pi. 25. 



Not rare under stones in rock-pools, chiefly at the East 



Rocks. 



Genus 8. Goniodoris, Forbes. 



Goniodoris nodosa, Mont. ; A. & II. B. Nud. M. fam. 1, 



pi. 18. 



Abundant between tide-marks under stones in rock-pools 

 and elsewhere, throughout the year. 



Fam. 2. Doridida?. 



Genus Doris, L. 



Doris tubercidata, Cuvier ; A. & II. B. Nud. M. fam. 1, pi. 3. 



Abundant under rocky ledges and under stones in pools. 

 Its parasite, Ergasilus, is common. 



Doris Johnstoni , Alder oi Hancock ; A. & II. B. Nud. M. 

 fam. 1, pi. 5. 



[Plate II. Bg. 16.] 



Occasionally under stones in pools between tide-marks 

 at the East Rocks. The same Ergasilus occurs on this 

 species. 



Doris repanda, Alder & Hancock; A. & H. B. Nud. M. 

 fam. 1, pi. ti. 



Abundant at all seasons amongst the rocks between tide- 

 marks. A specimen in the act of spawning is represented 



