Bibliographical Notices. 63 



attached to the orifice of the eflFerent canal ; c c, a fragment of 

 the membrane to which the canal is attached (magnified 200 

 diameters). 



Plate III. 



Figs. 1 to 5, Peltogaster sulcatus. 



Fig. 1. An adult individual seen from the side : a, the organ of adhesion*. 



Fig. 2. An adult individual deprived of its eggs and young : a, the anterior 

 extremity, at which the end of the ovarian sac has been pushed 

 out ; b, the posterior extremity of the body, a little contracted ; 

 c, the organ of adhesion ; d, the muscular membrane of the pal- 

 lium ; e, the ovarian sac. 



Fig. 3. A very young individual, slightly magnified : a, the tube of the 

 organ of adhesion *. 



Fig. 4. The same individual more highly magnified, and having wrinkles 

 and folds caused by the contraction of the animal : a, the tube of 

 the organ of adhesion ; b, the anterior extremity, at which a cast 

 skin (c) of its larva in the last stage of development is attached 

 by its prehensile antennae in the orifice of the pallium ; d, the 

 internal and cellular tube of the organ of adhesion ; e, the poste- 

 rior extremity, which has been curved*. 



Fig. 6. The cast skin of the larva, magnified 200 diameters : a, the pre- 

 hensile antennae ; b, the anterior extremity of the Peltogaster. 



Figs. 6 to 10, Apelles Paguri. 



Fig. 6. The animal seen from above : a, the anterior extremity ; b, the 

 posterior extremity, with a small tube. 



Fig. 7' The same individual seen from beneath : a, the anterior orifice of 

 the pallium ; b, the posterior extremity ; c, a fragment of the 

 skin of the Pagurus attached to the organ of adhesion or to the 

 margin of the pallium, which surrounds the large round aperture 

 occurring at this point. 



Fig. 8. The anterior extremity of the same, showing the ramose lacunae 

 in the muscular membrane of the pallium, seen from above. 



Fig. 9. The ovarian sac of the same, seen from above : a, a fragment of 

 the pallium attached to the anterior extremity ; b, the posterior 

 tube. 



Fig. 10. The two sacciform ovaries, slightly separated, and the testis, seen 

 from the lower surface : a, the testis, with two efferent canals ; 

 b b, the thick cellular layer at the anterior extremity of the ova- 

 ries ; c c, the two ovaries ; d, their posterior extremity. 



BIBLIOGRAPHICAL NOTICES. 



The Sea and its Living Wonders; translated from the German 

 edition, and partly re-written by the Author, Dr. G. Hartwig. 

 With numerous woodcuts and twelve Chromoxylographic Plates 

 by Henry Noel Humphreys. 8vo. Longmans, London, 1860, 



Considering the vastness of the ocean, and the innumerable crea- 

 tures which dwell in it, we can hardly wonder that it furnishes an 

 inexhaustible theme for writers of all kinds, and the appearance of 

 many new books on the Sea and its inhabitants can excite no surprise 

 in our minds. The author of the present work tells us that " for 

 years his daily walks have been upon the beach, and that he has 



