270 PROCEEDINGS OF THE SOCIETY. 



6. Hislopia lacustris is a peculiar species found by Carter in 185<s in 

 Central India. Lately it has again been found by Dr. Annandale, of 

 the Calcutta Museum, and also by Captain Walton, who sent me the 

 specimen exhibited here from Bulandshahr, Northern India. 



7. Membranipora mono star hi/s var. fossaria Hincks, is a brackish- 

 water species which has evidently wandered from the sea, and occurs in 

 tide pools, which, after heavy rains, contain very little salt water. The 

 present specimen was sent to me by Mr. Hurrell, who found it near 

 Great Yarmouth in a pool about a mile from the sea, encrusting the 

 submerged stems of an herbaceous plant. 



8. Pectinatella magnified is a remarkable American species made 

 known in 1851 by Leidy. It has also been found in the Elbe at Ham- 

 burg, the statoblasts having no doubt been introduced from America, 

 and in the Havel, near Berlin. The colonies form solid, rounded, 

 gelatinous masses of the size of a child's head, and the animals are 

 arranged in rosette-shaped groups on the surface. I saw a number of 

 these colonies at the Government Biological Station at Wood's Hole, in 

 America, and Mr. Potts, having procured a living specimen when staying 

 at Philadelphia, I prepared the group under the Microscope with the 

 horseshoe-shaped lophophore of every individual fully expanded. The 

 statoblasts are very large, rounded, and have 12-17 long, anchor-shaped 

 hooks round the periphery. I brought back some living statoblasts, 

 which are now hatching in my aquarium, and have also introduced some 

 in various canals and ponds, so I hope it will be possible in future to 

 study this interesting species in this country. 



!). Pectinatella gelatinosa. — This species comes from Japan, and was 

 discovered in LS90 at Tokio by Dr. Oka, who was good enough to send 

 me the specimens here exhibited. The large statoblasts have the shape 

 of a cardinal's hat, and have very minute booklets round the edge. 



10. Lophopodella Thomasi. — This species I described in 1904 * from a 

 specimen received from Mr. Thomas, who had found it four years earlier 

 in a pool formed by the Hunyani River in Rhodesia. The specimen was 

 killed and preserved in a fully contracted state, so only the peculiar and 

 characteristic statoblasts can be shown. 



1 1 . Plumatella tanganyikce, is another African species brought back 

 by Dr. Cunnington, who found it in Lake Tanganyika, encrusting shells, 

 stones, and submerged plants. 



12. Fredericella Gunningtoni is yet another new species from the same 

 Tanganyika Expedition ; the tubes of this Fredericella are formed of 

 coarse sand-grains, creeping, closely adherent, interlacing on shells and 

 stones. The circular lophophore has sixteen tentacles. 



The President said that Professor Allman's work on the Polyzoa, to 

 which reference had been made, was one of the most excellent mono- 

 graphs produced in this country, and it was a remarkable thing that so 

 long a period should have elapsed before any additions were made to the 

 species which he described. The Society was much indebted to Mr. 

 Rousselet for his interesting communication and for the exhibition of 

 the specimens described. 



The thanks of the Meeting were unanimously voted to Mr. Rousselet 

 for his exhibit. 



* Journ. Quekett Micr. Club., ser. 2, ic. (1904) pp. 45-56 (1 pi.) 



