113 



The thirty-six aiitozooids are arranged alternately in one row on each side of 

 the rachis. They vary from 2-3 "2 mm. in height. Between these there are some 

 smaller polyps interspersed, and there are 3-4 small polyps below the lowest well- 

 developed autozooid. The calyces are prominent, furnished with two strong points 

 on the abaxial side which are separated from the axial side by a deep indentation. 

 The spicules are arranged longitudinally on the abaxial and axial surfaces, but on 

 the latter they tend to be placed transversely at the edges. On the lateral surfaces- 

 the spicules are fewer in number, and some are directed at right angles to the 

 stalk, so that they cross the others which are placed longitudinally. 



The spicules are in the form of needles, varying from O'5-l mm. in length on 

 the rachis and the autozooids, but on the stalk they are very small (0" 12-0 '15 mm.). 



On the small immature polyps the spicules are arranged as on the mature 

 forms, thus producing a small conical projection. 



No siphonozooids are distinguishaljle. Jungersen seems to have shown con- 

 clusively that Microptilum is simply a young stage of Pavonaria ; and as our 

 specimen agrees closely with Microptihim willemoesii, KoUiker, we have recorded 

 it under the title Pavonaria xvillemoesii. 



Locality : Andaman Sea ; 650 fathoms. 



Geograiohical Distribution. — This genus is widely distributed ; P.Jinmarchica 

 has been recorded from the coast of Norway, from itie vicinity of Iceland, and from 

 the east coast of North America, at depths varying from 60-980 fathoms ; P. 

 africana (Studer) from the Atlantic and the West Coast of Africa, 10° 12 '9' N., 17° 

 23*5' W. ; P. sp. from the Japanese Seas and the Gulf of Korea, and Microptilum 

 ivillemoesii from Station 235, south of Yeddo, 34° 7' N., 138° E., at a depth of 565 

 fathoms. Another species has been recorded from Behring Island, and two more, 

 P. dojieinii and P. californica, from the Californian coast. 



Family Pexxatulidjs. 



Subfamily Pennatulinse. 



Pennatula indica, n. sp. 

 ,, veneris, n. sp. 



,, splendens, n. sp. 



,, pendtda, u. sp. 



Subfamily Pteroeidida?. 



Pteroeides triradiata, n. sp. 



Subfamily Pennatulinse. 

 Pennatula indica, n. sp. Plate VIII. fig. 1. 



Several beautiful specimens, the largest of which (A and B) are 150 and 105 

 mm. in length. 

 15 



