THE DISCOBOLI. 95 



, PLATE VIII. 



Cycloplerus lumpus Linne. Figs. 1-3, 15-17. 



Figs. 1-3. Brain: Fig. 1, the upper surface; Fig. 2, the side; aud Fig. 3, the appearance from 



beneath. 

 Fio-s. 15-17. Pelvis and veutrals, right lialf ; Fig. 15 as seen from above, Fig. 16 from the outer side. 



aud Fig. 17 from beneath. 



Liparis pulchellus Ayr. Figs. 4-7, 12-14. 



Figs. 4-6. Brain. Fig. 4 a dorsal, Fig. 5 a lateral, aud Fig. 6 a ventral view. 

 Fig. 7. Otoliths. 



ri<TS. 12-14. Pelvis and ventrals ; Fig. 12 the dorsal, Fig. 13 the lateral (right side), and Fig. 14 the 

 ventral aspect. 



Liparis Montagui Don. Figs. S-11. 

 Fig. 8. Otoliths. 



Figs. 9-11. Brain; Fig. 9 upper, Fig. 10 lateral, and Fig. 11 lower surface. 



PLATE IX. 



Figs. 1, 4-8. Liparis mucosus Ayr. Fig. 1, a side view of the skull; Figs. 4 and 5, irregular teeth; 



Fig. 6, operculum; Fig. 7, suboperculuni; Fig. 8, iuteroperculum. 

 Fig. 2. Cycloplerus lumpus. Side of the skull. 



Fig. 3. Coitus octodecimspinosus Mitch. Skull from the side. 



PLATE X. 



Fig. A. Liparis mucosus. Skull with bones in outline. 



Fig. B. Cycloplerus lumpus. Skull with bones in outline. 



Fig. C. Collus grocnlnmlicus C. & V. Skull with bones in outline. 



The numbers on the different bones are those used by Cuvier and Gtinther. 1, Frontal; 

 2, Prefrontal ; 3, Ethmoid; 8, Supraoccipital; 17, Intermaxillary; 18, Maxillary; 19, Subor- 

 bitals; 20, Turbinal ; 22, Palatine; 23, Ilyomandibular ; 24, Pterygoid; 25, Entopterygoid ; 

 26, Quadrate; 27, Pretympanic; 28, Operculum; 29, Styloliyal; 30, Preoperculum; 31, Sym- 

 plectic; 32, Suboperculum; 33, Interoperculum ; 3K Dentary; 35, Articular; 36, Angular; 

 37, Epihyal ; 38, Ceratohyal ; 39, Basihyal ; 42, Urohyal; 43, Brauchiostegal rays; 46, Post- 

 temporal; 47, Supraclavicula. 



4 



PLATE XI. 



Cycloplerus spinosus Miiller. 

 Figs. 1-3. Side, ventral, and front views. 



Cyclopteroides gyrinops Garman. Figs. 4-9. 

 Figs. 4-6. Surfaces: Fig. 4, latei-al ; Fig. 5, inferior; Fig. 6, anterior. 



Figs. 7-9. Viscera : Fig. 7, from below; Fig. 8, from above; Fig. 9, from the right side, with the 

 esophagus toward the right hand. 



