PLATE LI. 



FIGS. 



1. TripapTiylus musteli (P. J. van Beneden), $, x 2J (head 



wanting), (p. 160.) 



2. Pennella orfhagorisci E. P. Wright,, ?, about natural size 



(head wanting), (p. 150.) (Thomas Edward's specimen.) 



3. Sphyrion lumpi (Kroyer), ?, X about 2. (p. 164.) 



4. A smal]er specimen, rather imperfect, x about 4. 



5. Eebelula edwardsi (Kolliker), ?, x about 2 (head 



wanting), (p. 162.) 



6. Thersitina yasteroxtei (Pagen steelier), ?, x 27. (p. 42.) 



7. Clavella lophii (M. Edwards), ?, x 2. (p. 226.) 



(All the figures shew dorsal view.) 



