BETOZOA FROM NEAR CAPE HOES'. 239 



tabes, just as in the iS. spinosissima of Hineks. This group of 

 Smittia is most difficult to determine, and this species approaches 

 so closely to S.PeachiiNax.octodentata,!!.!^^^.^, that I considered 

 they were the same ; but Hineks did not agree in this (see Ann. 

 Mag. Nat. Hist. ser. 6, vol. ix. p. 327), and possibly the wide 

 denticle is a sufficiently important character on which to base 

 the separation. 



Sah. Bass's Straits. Cape Horn Exped., Station unknown. 



Fossil. 'New 'Ziealand (Waters). 



Smittia Landsbobovii, form peesokata, SincJcs. 



This species, which is fairly common from Cape Horn, and 

 was described by Jullien as S. mo7iacTia, Jail., has been dealt 

 with more fully in my " Bryozoa," Exp. Antarct. Beige, p. 63. 



Hah. Bass's Straits; Victoria; New South "Wales; Cape 

 Yerde Islands ; Marion Islands. Cape Horn, Station unknown. 



Smittia alvareziana {d'Orhigny). 



Escharina alvareziana, d'Orb. Voyage dans I'Amerique Merid. p. 14, 

 pi. 6. figs. 1-4. 



JReptescharellina alvareziana, d'Orb. Pal. Fr. Terr. Cret. p. 453. 



Mucronella alvarezi, Jullien, Bull. Soc. Zool. de France, p. 5 (1881). 



Mucronella alvareziana, Waters, " Tert. Bry. New Zeal." Quart. Journ. 

 Geol. Soc. vol. xliii. p. 57, pi. 7. figs. 24, 25 (1887). 



Lepralia alata, Busk, Brit. Mus. Cat. p. 71, pi. 79, fig. 3. 



In the specimen found among the material collected \>j the 

 Cape Horn Expedition there are 5 spines, and in the New 

 Zealand fossil there are 5 or 6, whereas Jullien saw none, nor 

 does d'Orbigny describe any. The two outer spines in S. alva- 

 reziana are rather larger than the others, and these may have 

 dropped off in Busk's L. alata, which corresponds in other 

 respects, but unfortunately it has been impossible to make direct 

 comparison, as L. alata was not returned to the British Museum. 



There is an umbo and denticle to some zocecia, but there are 

 others without either. 



Sab. Bolivia and Peru (d'Orh.) ; Valparaiso (Jull.) on Ostrea; 

 Cape Horn, 40 fath., as alata (Busk). Cape Horn Exp., Station 

 unknown, on Aspidostoma giganteum, Busk. 



Fossil. New Zealand. 



Smittia Lebruni, sp. nov. (PI. 28. figs. 13 & 13 a, b, c). 

 The zoarium forms large foliaceous masses with a bilaminate 



