Dr. Johnston on the British Aphroditacets. 437 



along each margin : a single conical acuminate spine to each 

 brush of bristles. Tentacular cirri alternating as usual, covered 

 with short fleshy obtuse spines, the point of the cirrus sud- 

 denly acuminate, naked, and frequently spathulate at the apex. 

 Tail with two of the filaments disproportionally elongate. 



Plate XXII. Fig. 3. Po^yraoe m^ar, nat. size. 4. Head uncovered and 

 magnified. 5, 5*, 6. Scales magnified. 7, 8. Two views of two feet, mag- 

 nified ; h. the tentacular cirrus. 9. Three bristles. 



4. P. viridis, scales eighteen pairs. 



Aphrodita viridis, Montagu in Lin. Trans, xi. 18. tab. \v.Jig. 1. 



Hab. South coast of Devonshire, Montagu. 



Desc. Body long, greenish, with about thirty-six fascicuh 

 on each side, and covered with eighteen pairs of squamge, which 

 appear a little speckled by reason of their being somewhat ru- 

 gose : the fascicles are much divaricated, and between each 

 scale is a fleshy fiUform appendage terminated by an extremely 

 fine fibre : tentacula four, setaceous : eyes four, small and black. 

 Length three-fourths of an inch. Rare. 



" Possibly this is the cirrosa of Pallas, as it nearly accords 

 in the number of feet; and probably some of the scales of his 

 were lost, as it is usual for them to be in number about half 

 those of the feet." Montagu. 



Obs. In the figure there are only fourteen scales on each 

 side. 



The two worms described below are so obscure that we can 

 say of them no more than that they appear to be referable to 

 this genus : 



Aphrodita annulata, *' oblong, fusiform, annulated, smooth, 

 excepting a row orfminute spines (one on each ring) running 

 along the back ; feet small; size two inches and a quarter ; of 

 a pale yellow colom*." Pen. Brit. Zool. iv. 87. tab. 2Q.fig. 3. 

 Stew. Elem. i.388. Turt. Brit. Faun. 136. 



Aphrodita minuta, " with small scales ; slender ; not an inch 

 long. Taken off Anglesey." Fen. Brit. Zool. iv. 87. tab. 26. 

 fig. 4. — Aph. lepidota, Turt. Brit. Faun. 136. 



3. Pholoe*, Johnston. 

 1. Ph. inornata. Plate XXIII. fig. 1—5. 



* A Nereid : 



" As Pholoe, most that rules the monsters of the main." 



Drayton, Polyolbion, Song xx, 



