354 APPENDIX. 



II. 



SPECIES DESCRIBED AS BRITISH, BUT WHICH I AM NOT ABLE 

 TO APPORTION TO THEIR TRUE PLACE, FROM THE LACK 

 OF PERSONAL ACQUAINTANCE WITH THEM. 



Alderi (Cocks). " Body cylindrical, hyaline, smooth ; numerous grass- 

 green longitudinal striae ; tentacles twelve, short, obtuse, with a continu- 

 ation of the green line on the posterior surface of each. Disk and mouth 

 crimson, the latter marked with eight spots of same colour, but much 

 darker; edge of disk entire; suctorials minute, numerous, imbedded." 

 Deep water, off Falmouth. 



Pellucida (Cocks). " Body cylindrical, smooth, opalescent ; numerous 

 white longitudinal grooves ; suctorials minute ; tentacles short, filiform, 

 transparent, plain ; mouth small ; disk circular, fiat, crossed by opaque 

 white lines ; edge entire." Falmouth. 



Yan-ellii (Cocks). " Body conoid, hyaline, with twenty-four longitu- 

 dinal semi-opaque white striae ; suctorials numerous, minute, imbedded. 

 Three rows of tentacles, short, obtuse (rather clavate), spotted all over 

 with white. The ovarian filaments, &c. distinctly seen through the trans- 

 parent tunics." Falmouth. 



Bellii (Cocks). " Body cylindrical, hyaline, spotted with yellow ; 

 twelve longitudinal opaque white striae ; mouth bright orange-red ; two 

 yellow patches extending from the angle on each side to the base of the 

 tentacles ; tentacles twenty, long, filiform, dotted anteriorly, and tipped, 

 with yellow." Falmouth. 



Hastata (Wright). "Base adherent to rock; not exceeding column. Column 

 smooth ; height about equal to breadth (one inch). Disk hollow, hardly 

 equalling diameter of column. Tentacles numerous ; in five or six rows, 

 set close to margin ; nearly equal ; very conical and short ; thickly 

 crowded. Mouth set on a cone ; lip tumid, furrowed. Column and disk 

 sienna-brown, or salmon colour. Tentacles light brown, with two white 

 bars across the base, tip slightly white or translucent. Lips orange or 

 brick-red." Berehaven, Co. Cork. 



N.B. The above five species seem all referrible to that group of the 

 genus Sagartia, which I have provisionally named Thoe. 



Intestinalis (Fabric). " Body cylindrical, the upper half suddenly con- 

 tracted and narrow." — " When contracted, the body seems like two broad 

 rings, of nearly equal breadth, and about half an inch in diameter ; when 

 expanded to nearly two inches, the body consists of two cylindrical por- 

 tions of different dimensions, smooth, pellucid, yellowish ; a few longi- 

 tudinal white streaks ; disk not expanded ; tentacles about eighteen, 

 filiform, in two rows." (Fleming.) Shetland. 



