130 BRITISH TUNICATA. 



\_Phallusia rustic a FLEMING Brit. Anim. (1828), p. 469.] 



Ascidia grossularia VAN BENEDEN Rech. Ascidies simpl. [in 

 Mem. Acad. Roy. Belg. XX (1847), p. 61, pi. iv, ff. 6-11 ; 

 THOMPSON in Ann. Nat. Hist. (2) I (1848), p. 63; FORBES 

 in Rep. Brit. Assoc. for 1850 (1851), p. 253 ; RYMER 

 JONES Organiz. Anim. Kiugd. ed. 2 (1855), p. 494; ed. 3 

 (1861), p. 487; and ed. 4 (1871), p. 523; THOMPSON Nat. 

 Hist. Ireland, IV (1856), p. 360]. 



Cynthia rustica FORBES & HANLEY Brit. Moll. I [1848], p. 

 39; ALDER & HANCOCK in Trans. Tyneside Nat. Field 

 Club, I [1848], p. 197; [LANDSBOROITGH Treas. Deep 

 (1847), p. 49, and Excurs. Arran (1852), p. 49; NORMAN 

 in Zoologist, XA 7 (1857), p. 5708 ; DICKIE in Rep. Brit. 

 Assoc. for 1857 (1858), p. 111]. 



Cynthia grossularia [FORBES & HANLEY Brit. Moll. I (1848), 

 p. 40;' COCKS in Rep. R. Cornw. Polyt. Soc. 1849 (1850), 

 p. 72; GOSSE Tenby (1856), p. 93; BRONN Thier-Reichs, 

 III, 1 (1861), p. 161; ANSTED Channel Islands (1862), p. 

 219;] ALDER in Ann. Nat. Hist. (3) XI [1863], p. 165; 

 [in Nat. Hist. Trans. Northumb. Durli. I (1865), p. 11; 

 and in Rep. Brit. Assoc. for 1866 (1867), p. 208 ; MC!NTOSH 

 in Proc. Roy. Soc. Edinb. (1866), p. 605; NORMAN in 

 Rep. Brit. Assoc. for 1868 (1869), p. 303; M. & G. 0. 

 SARS Christianiafjord. Fauna, pt. 2 (1870), p. 102]. 



[Styelopsis grossularia TRAUSTEDT in Vid. Medd. Kjobeiih. 

 (1882), p. 115.] 



Body hemispherical, more or less rugose, rusty red, 

 bright red, or yellowish drab, largely adherent and 

 spreading at the base when single, more erect when in 

 compact clusters. Apertures rather large, shortly 

 tubular, bright red, set considerably apart on the 

 upper surface. Test tough, thickish, and much wrinkled 

 in old specimens, nearly smooth when young. Mantle 

 crimson, yellowish at the base. Tentacular filaments 

 large and stout. Branchiae, orange-coloured, with a 

 single strong fold near the ventral line on the left side, 

 occasionally a small accessory one on the same side, 

 and one or two very indistinct folds on the right ; 

 oral lamina broad and smooth. Ovaries large, cylin- 

 drical, arranged in a longitudinal line [on the left 

 side]. 



Diameter from a quarter to half an inch. 



