52 ZOOLOGICAL COLLECTIONS MADE DURING [Jan. 4, 



Smittia landsborovi, Johnston. 



Lepralia landsborovii, Johnston, Brit. Zooph. (2) i. p. 310, 

 pi. Hv. fig. 9. 



Smittia landsborovi, Hincks, Hist. Brit. Mar. Polyz. p. 341, 

 pi. xlviii. figs. ()-9. 



A small colony, or part of one, discovered among an immense 

 number of TuhuliporcE. Sessile. Cells thin, hyaline, punctured all 

 over, oval or narrow-pentagonal ; bounding lines faint or absent. 

 Six strong spines on margin. Avicularium small, on lip of mouth, 

 sometimes absent. 



Hab. Elizabeth Island, 6 fathoms,. on Fucus. 



Lepralia reticulata, Macgillivray, Ann. &Mag. Nat. Hist. (1) ix. 

 p. 467. 



Smittia reticulata, Macgillivray?, var. 



Smittia reticulata, Hincks, Hist. Brit. Mar. Polyz. p. 346, 

 pi. xlviii. figs. 1-5. 



Part a of colony. Margin of mouth generally complete below, 

 subjacent denticle seldom seen. Cells outlined by distinct raised 

 line. Oval median avicularium included in an area bounded by a 

 line descending from the sides of the month, longitudinal in direction, 

 sometimes absent. Cell equally punctured all over. Spines on 

 border of mouth 4 or 5, the median ones less robust than the lateral 

 ones. Lower lij) prominent. Ooecium absent. 



Hab. Elizabeth Island, 6 fathoms, on Fucus. 



Obs. In the punctuation of the entire surface and in the larger 

 nuiTiber of spines this appears to differ materially from S. reticulata, 

 but it is at any rate closely allied to it. 



Smittia affinis, Hincks, var. nov. acuminata. 



Lepralia affinis, Hincks, Ann. & Mag. N. H. (3) ix. p. 206, 

 pi. xii. fig. 2. 



Smittia affinis, Hincks, Hist. Brit. Mar. Polyzoa, p. 348, pi. xlix. 

 figs. 10, 11. 



Zocecia ovate or distinctly pentagonal (the upper angles rounded), 

 separated by slender raised lines ; surface covered with moderately 

 large punctures radiating obscurely from centre ; peristome thin and 

 depressed below, thick above, where 4 to 5 strong spines spring 

 from it ; below and within inferior edge of peristome 3 denticles, the 

 median one generally hammer-shaped, the others simply acute. 

 A circular avicularium may be present immediately below the lower 

 lip, on a slightly raised boss. OcEcia globose, somewhat more broad 

 than long, with a semicircular crown of large punctures on the upper 

 surface; the peristome is prolonged into a pointed lip on each side of 

 the front of the cell (similar ones sometimes occur in the same 

 position in the zocecium), and is often indented by a sinus which 

 occurs in its lip. One of the zoaria forms a circular patch ; the other 

 is imperfect. The specimens agree in all other points with Hincks's 

 description (?. c). 



