ZOOPHYTOLOGY. 309 



rows ; surface smooth. Mouth raised, deeply sinuated below, with two 

 or three unequal teeth on either side ; four superior, marginal spines. 

 Ovicell globose, with a triangular vertical fissure in front. Avicularia of 

 various sizes distributed irregularly over the polyzoary. 



Hab. Guernsey, J. Alder; Coast of Devon, MUs Cutler; Exmouth, 

 Barlee. 



The foregoing Lepralia was long since brought under my 

 notice by my esteemed friend, Mrs. Gatty, to whom zoophy- 

 tologists are under many important obligations. 



3. L. lata, n. sp. Busk. PI. X., figs. 1, 2. 



Cells broadly-ovate, immersed, quincuncial ; surface punctate or pitted, 

 more especially aroiind the border. Mouth rounded above, contracted 

 below the middle, with a straight lower lip ; margin slightly thickened. 

 Ovicell rounded. 



Hab. Bay of Gibraltar, on Shell, Dr. Landshorough. 



4. L. unicornis, Johnston. PI. X., figs. 3, 4. 



This is the same species as the one figured in PI. LXXXI. 

 of the ' Brit. Mus. Cat,' where it is regarded as a variety of 

 L. spinifera, but I now think erroneously ; whether it differ, 

 however, from Dr. Johnston's L. ansata is far more doubtful ; 

 I am inclined to think that L. ansata is nothing more than 

 L. unicornis, with the two avicularia. It is sometimes without 

 those appendages at all, sometimes has one, and very often 

 two. The latter form seems to be identical with the Cellepora 

 Dnnkeri of Reuss (' Fossil. Polyp, d. Wiener tertiar. Beckens,' 

 PI. X., fig. 27). 



5. L. Peachii, Johnston. (Brit. Mus. Cat., p. 77.) PI. X., figs. 5, 6. 

 (Var. lahiosa). 



This thick-lipped variety, as I suppose it to be, of L. Peachii, 

 was collected by Mr. Alder in the Island of Guernsey ; I have 

 it also from Belfast Bay, collected in deep water by the late Mr. 

 Thompson. 



6. L. pallasiana, Moll. (Brit. Mus. Cat., p. 81.) PI. XL, figs. 1—2. 

 (Var. armata.) 



Most of the cells having an avicularium immediately below the mouth 

 in front ; mandible rounded. 

 Hab. Tenby, Busk, 



This Lepralia agrees so perfectly in all other respects with 

 L. pallasiana, that it is impossible, I think, to separate them 

 merely on account of the existence of the avicularium below the 

 mouth. 



7. L. Landshorovii, Johnston. (Brit. Mus. Cat., p. GO.) PI. XL, fig. 3. 



The species here figured, appears to correspond in most par- 

 ticulars with that described by Dr. Johnston under the above 

 appellation, of which the only specimen with which I am ac- 



VOL. IV. Y 



