92 CLASS II. 



Sp. Minyas cinerea Cuv. R. Ani. i re edit. PI. xv. fig. 8, LESSON Centurie 

 Zool. PI. LXII. fig. I, in the Atlantic Ocean. This genus is referred by 

 CUVIEB to the Echinodermata apoda; LESUEUR, who has made known some 

 other species of it, gives it a place near Actinia. An accidental, not a 

 natural opening in the disc, opposite the mouth, was taken by CUVIER for 

 anus. See the 2nd edition of LAMARCK, Hist. not. des Anim. sans vertebrcs 

 in. pp. 427429. 



Lucernaria MuELL. Body gelatinous, radiate, the rays tenta- 

 culiferous at the tip, above flattish, with mouth central, funnel- 

 shaped, protracted, below elongated into a pedicle disciform at 

 the extremity. 



Sp. Lucernaria quadricornis Zool. dank. Tab. xxxix. JOHNSTON, Hist. Er. 

 Zooph. pp. 244 252. fig. 3 7. 



Comp. on this genus LAMOUROUX, Mem. du Museum, n. pp. 460 471. 

 PI. XVI. Does it belong here ? LAMARCK refers this genus to the Acalephce. 



Edwardsia QUATREF. Body free, cylindrical, rounded behind. 

 The middle portion of the body with thicker epidermis, opaque; 

 the anterior and posterior pellucid, retractile within the middle. 

 Mouth furnished with tentacles, hollow, arranged in single or 

 double row. 



Sp. Edwardsia Beautempsii QUATREFAGES, Ann. des Sc. nat. ie Serie. Tom. 

 xviu. Zool. PI. i. fig. i, &c. 



These remarkable animals, discovered by QUATREFAGES, live on the sea- 

 shore in the sand, like Sipunculus and some Annulata. The tentacles are 

 not perforate at the extremity, as little as they are so in Actinia, in which 

 preceding authors (RAPP, RYMER JONES and others) admit a reception of 

 water through the presumed apertures. 



ORDER IV. Bryozoa. 



Nutrient canal supplied with double aperture (mouth and anus), 

 replicate, the posterior portion ascending by the side of the anterior. 

 Tentacles long, furnished with vibratile cilia, surrounding the 

 mouth. The anterior part of the polyp soft, retractile within the 

 posterior by inversion. 



EHRENBERG was the first to separate with precision these animals 

 from the other forms of the Polyps see the Introduction to this 

 class. MILNE EDWARDS makes of them, in company with the 

 Acephala nuda, a division of the type of the Mollusca under the 

 name of Molluscoides. As in our first order of Polyps we see a 

 resemblance to Acalephce or Medusae, in the second recognise the 

 proper type of the Polyps, 'and in the third perceive a transition to 



