SCHIZOPORELLA LINEARIS. 247 



fathoms (W. T.) : South Devon, rare ; Guernsey (T. H.) : 

 Hastings (Miss Jelly) : Hebrides (A. M. N.) : Unst, 

 Shetland, 45 fathoms ; Peterhead and Wick (C. W. P.) . 

 Distribution in Time. Scotch Glacial deposits (Geikie). 



The elevated, subtiibular peristome, half concealing the 

 orifice, gives a very remarkable appearance to this species, 

 and somewhat interferes with the recognition of its real 

 affinities. But the form of the mouth and the lateral 

 avicularium are characters which clearly connect it with 

 the present group. It seems to be local in its distribution, 

 and has only been found abundantly at one or two points. 



SCHIZOPORELLA LINEARIS, HaSSall. 

 Plate XXXVIII. figs. 5-10, aud Plate XXIV. fig. 1. 



Lepralia linearis, Hass. Ann. N. H. vii. 368, pi. ix. fig. 8 : Joknst. B. Z. 



ed. 2, 308, pi. Hv. fig. 11 : Busk, P.M. Cat. ii. 71, pi. Ixxxix. 



figs. 1-3 : Manzoni, Bryoz. fossil. Ital., Contrib. iii. 5 (sep.) 



pl. i. fig. 4; Sitzb. k. ilad. d. Wissensch. Bd. Ix. 1. Abth. 



Dec-Heft, 1869 : Norman, Shetland Polyz., Pep. Brit. Assoc. 



1868, 306 : var. hastata, Hincks, Dev. Cat., Ann. N. H. 



ser. 3, X. 362. 

 Herentia linearis, G7-ai/, B.M. Pad. 123. 

 Lepralia hastata, Hincks, Dev. and Corn. Cat., Ann. N. H. ser. 3, ix. 206 



(46 Sep.), pl. xii. figs. 4, 4a. 

 EscHARELLA LINEARIS, forma 1, Smitt, CEfvers. K. Vet.-Ak. Forh., Bihang, 



1867, Krit. Fort. iv. 13 and 95, pl. xxiv. figs. 68, 69. 

 Lepralia tenella, Beuss, Foss. Bryoz. d. osterreicb.-ungariscli. Miocans, 23, 



pl. vi. figs. 3-5. 



Zooecia rhomboidal, depressed, disposed in regular linear 

 series, and separated by raised lines, sometimes con- 

 fluent and forming a uniform crust ; the surface flat, 

 nodulous or covered with anastomosing ridges, and 

 punctured, or enveloped in a granular crust; orifice 

 orbicular, slightly rimmed, with a pointed sinus below ; 

 marginal spines 2-4 ; occasionally a central mucro a 



