578 PKOF. c. H. o'donoghue : report on 
Fig. 15. Dendrodoris mimimosa (Abraliam). Dorsal aspect, x 1. While the general 
appearance is shown well tliere is no indication of the colour-markings. 
Fig. 16. Nembfotha 2}^"'P'^''<'olineaia, sp. nov. Dorsal aspect, X 1. This indicates the 
general form of the animal, save that the tail is tnrned to the right, and also 
the position of the branchiaj. 
17. Lateral aspect of the specimen illustrated in fig. 16, X 1. This shows the 
way in which the body increases in height to the level of the gills and then falls 
away to the tail. 
Kg. 18. Notodoris i/ardineri Eliot. Dorsal aspect, X 1. Tlie general form of the body 
with the tail turned to tlie right : the rhinophoral apertures and the branchial 
valves are clearly shown. 
19. Lateral aspect, x 1. The tail in this specimen is turned up. It shows 
clearly the rough nature of the suiface, the large size of the branchial valves, 
and here and there some of the hard spheres. 
Plate 29. 
All the fignres on this plate were drawn from preparations from specimens in the collection 
and at the various magnifications shown by the aid of a camera lucida. 
Fig. 20. Tet/)i/s f/it/cmtea {Sowerhy). The median tooth and first two pleural teeth of one 
side, X 97. 
2L Three pleural teeth from near the middle of the row, X 97. 
22. The six outermost pleural teeth, x 97. 
Fig. 23, Tethys deuisoni (Smith). The median tooth and first two pleural teeth of one side, 
X07. 
24. Three pleurals from near the middle of the row, X 97. 
25. The seven outermost pleurals, x 97. 
Fig. 26. Dolabrifera pelsartensis, sp. nov. The median tooth and first two pleural teeth of 
each side, X 97. 
27. Three pleurals from near the middle of the row, x 97. 
28. The four outermost pleurals, x 97. 
Fig. 29. Berthella plumula (Montagu). The two innermost pleurals, x 250. 
30. Two pleurals from near the middle of the row, x 250. 
Fig. 31. Placohranchus expansa, sp. nov. Three teeth near the inner end of tlie radula, 
seen from the side, X 190. 
32. A single tooth from near the outer end of the radula, seen from the side, 
X 190. 
33. A single tooth from near the outer end of the radula, seen from above, 
X 190. 
34. A single tooth from the sac, seen from the side to show the relatively small 
size, X 190. 
Fig. 35. Splusrostoma dakeni, sp. nov. Tlie jaws, antero-veiitral \ iew, x 3. 
36. The jaw, lateral view, x 3. 
37. Two rows of the median tooth and the first pleural tooth on each side, 
X97. 
38. The four pleurals next to the innermost pleural, X 97. 
39. Three pleurals from near the middle of the row, X 97. 
40. Three outermost pleurals, X 97. 
Fig. 41. Hexahranchus imperialis Kent. The four innermost pleurals, X 70. 
42. The fourth pleural, side view, x 70. 
43. Three pleurals from near the middle of the row, X 70. 
44. Four outermost pleurals, x 70. 
