190 ZOOPHYTES 



inches can be obtained. Nevertheless, some of these spots are sufficiently 

 known to a few of the fishermen of this country, who can anticipate a 

 successful search for them with their rude apparatus. I am confident, 

 however, that larger and better specimens might be obtained through the 

 aid of a better contrivance. 



Plate XLIII. Fig. 1. Virgularia. — Pennatula mirabilis. — Sea Rush. — Specimen 



as recovered from the sea. 



2. Section. 



3. The same enlarged. 



4. Hydra enlarged. 



5. Lobe with one hydra displayed. 



6. Bone. 



7. Fragment of a specimen, with the lower extremity fleshy 



and entire. 



8. Double bone invested by the flesh. 



9. Corpuscula within a lobe, as obscurely exposed through the 



flesh, enlarged. 



10. Corpuscular embryos or ova discharged by the Virgularia. 



enlarged. 



11. Planulffi enlarged. 



12. Nascent Virgularia from a planula, June 29, enlarged. 



13. Nascent Virgularia, July 12, enlarged. 



14. Nascent Virgularia with a dark central line, enlarged. 



§ 3. Pennatula phosphorea — SeaFeather — Cock's-comb. — Pl. XLIV. 

 — The name which seems by common consent to have been bestowed on 

 this zoophyte, is so truly expressive of its resemblance to a feather, that, 

 amidst the numerous recent changes, no one has proposed to alter it. 



In general nature, there is much analogy between it and the subject 

 of the preceding paragraph. 



When completely distended, the Pennatula of the Scotish seas 

 stretches between four and five inches in length, by nearly two inches in 

 breadth. Its external form consists of two parts, very unlike each other, 

 namely, the shank, extending half of the whole, smooth and round, half 



