Mr. A. H. Hassall's Catalogue of Irish Zoophytes. 373 



me with his opinion, and to whom, therefore, my most sin- 

 cere thanks are due. 



For the beautiful drawings which accompany this commu- 

 nication, some of which T have had the pleasure of exhibiting 

 to tlie Society, I am indebted to the skill and perseverance of 

 a lady, whose name I would most willingly mention were I 

 authorized to do so. 



Having brought this paper to a termination, it now only re- 

 mains for me, in the first place, to thank the Society for the 

 attention with which it has listened to me, and to hope that 

 any errors of detail which may have been noticed will be ex- 

 cused, when the time occupied, less than two months, not 

 merely in the preparation of the manuscript and drawings, 

 but also in obtaining the materials for it, is taken into consi- 

 deration ; and secondly, to beg its acceptance of a collection of 

 Irish zoo]3hytes, a portion only of which is now upon the table. 

 In taking my leave for the pi'esent, I cannot refrain from 

 the expression of my most cordial wishes that the affairs of 

 this Society may "go on and prosper," conferring, as it must 

 necessarily do, moral and intellectual benefit, not merely on 

 the members composing it, but, through them, upon the 

 country at large. I shall at all times feel great pleasure in 

 contributing my mite towards the promotion of its objects. 

 With this paper terminate, I regret to say, my labours in 

 this interesting, and as yet not fully explored, field of natural 

 history. In a few days I shall be called upon to quit the 

 beautiful ocean, — beautiful in its strength, its purity, its fresh- 

 ness, its majesty, and in its infinity ; beautiful in calm and 

 storm ; and its still more beautiful and ever-varying produc- 

 tions, in the study and contemplation of which 1 so much de- 

 light. 



EXPLANATION OF THE PLATES. 

 Plate VL Fig. 1. A magnified representation of Co?7/«e .>;y;<aw«<«. Fig. 



2. Hermia glandulosa, a single j)olype, magnified, exhibiting the 

 reproductive geramules. Fig. ."3. Sertularia Margarita, nat. size. 

 Fig. 4. Do., magnified. Fig. 5. Sertularia pumila, magnified. 



Plate VIJ. Fig. 1, 2. Thuiario articulata. 



Plate VIII. Fig. 1. Flumulariafrutescens, natural size. Fig. 2. Valkeria 



inibricata, natural size. Fig. 3. Lange7iella repetisl magnified. 



Fig. 4. New species of Valkeria. Fig. 5, 6. Hippothoa lanceolata. 

 Plate IX. Fig. 1. Cellepora bimiicronata. Fig. 2. Lepralia ciliata. Fig. 



3. L. appensa. Fig. 4. L. pedilostoma. Fig. 5. L. insignis. Fig. G. 

 L. cijlindrica. Fig. 7. L. punctuia. Fig. 8. L. linearis: all mag- 

 nified. 



Plate X. Fig. 1 . Tabidipora lohalata, natural size. Fig. 2. The same 

 magnified. Fig. 3. Alcyonidium hirsutiun, in its young state. Fig. 



4. The same magnified. Fig. 5. Echinochorium clavigerum : a, one 

 of the polypes with its feelers retracted ; 1>, one witli the stomach 

 everted. 



