MUREX. 31 



ultimis elongato-digitatis ; apertura parva, eanali breviusculo 

 clause — The later spines are developed into long black 

 fingers. 



140. eota, f. 140, Sowerby. — Testa ventricoso-subpyri- 

 i'ormis alba, pallidissime violascens, laevigata ; spira sub- 

 pyramidali, anfractibus brevibus, rapide crescentibus ad 

 suturam inter varices cavernosis ; varicibus crassis, fronte 

 lacineatis, supra suturam extensis, ultimi anfractus in digitis 

 radiautibus quatemis, clavatis, expansis. — The fronds radiate 

 on the varices of the last whorl like the spokes of a wheel. 



141. sconrio, f. 141, Linnceus. — Testa pyriformis, gracilis, 

 fulva-nigricans, quinquefariam varicosa, varicibus latis, fronte 

 lacineatis frondosis, ad precedentem anfractum longe extensis ; 

 frondibus ultima? varicis senis productis planulatis clavatis 

 palmiferis ; spira producta, anfractibus scalatis, inter varices 

 ad suturam profunde foveolatis, eanali elongate- — The whorls 

 are much attenuated at the suture, where hollows are formed 

 bridged by septa from the next whorl in succession. The 

 flattened and lacineated fronds are curiously expanded at the 

 ends. 



142. vamcosus, f. 139, Sowerby. — Testa pyriformis albida 

 spiraliter lirata ; varicibus octonis, breviter frondosis latis, 

 fronte laciniatis, ad suturam longe elevatis ; frondis ultima? 

 varicis undecim, productis, latis, clavatis ; spira breviuscula ; 

 anfractibus inter varices ad suturam profunde foveolatis. — 

 More compactly formed than M. Scorpio, with broader, 

 laciniated varices, the fronds of the last being shorter, much 

 more numerous. 



143. secundus, f. 143, Lamarck. — Testa pyriformis, inter 

 varices laevigata, alba, varicibus quinis fuscis, fimbriatis, 

 ultimis breviter digitatis, eanali lato, sutura profunde inter 

 varices foveolato. — This might be almost described as a 

 short-fronded Scorpio, but the characters are sufficiently 

 distinct. M. varicosus may be considered as intermediate, 

 but also perfectly distinct. There is a reversed, and also 

 a white specimen in the British Museum. 



144. digitatus, f. 148, Soiverby. — Testa pyriformis, spi- 

 raliter lirata, octo-varicosa, varicibus ad suturam extensis, 

 breviter frondosis; frondibus fuscis, ultimae varicis ad ter- 

 minum breviter expansis ; spira brevissima, ad suturam inter 

 varices profunde digitatis. — The fronds are short and nume- 

 rous, and on the later varices spread in a key-shaped fashion. 



