106 Canon A. M. Norman — Notes on the 



Genus Doryporella, gen. nov.* 



ZocEcia with front wall pnnctated, furnished with a median 

 pore, in front of which is a spine with spatuhite or pear- 

 shaped head. Orifice somewhat horseshoe-shaped, being 

 slightly contracted at the sides and the proximal margin 

 quite straight, distal margin spined. Ocecia globose, punc- 

 tate. Avicularia at the sides of the oral opening. 



Type, Borypordla spatulifera (Smitt). 



44. Doryporella spatitlifera (Smitt). 



1867. Leprnlia spatulifera, Smitt, "Kritisk Fortecknino', itc," (Efvers. 



Konc?!. Vet.-Akad. Fihhand. p. i'O, pi. xxvi. tigs. U-t-GH. 

 1900. Microporella spatuUfeva, Waters, " Bryozoa from Franz-Josef 



Land," Jouru. Linn. Soc, Zool. vol. xxviii. p, 87, pi. xii. fig'. 6. 



This is a very remarkable little species. The mother-cell 

 is short, ovate, with spined margins. In young zooecia the 

 pore is much larger in proportion than it is at subsequent 

 periods of growth ; it is wide open, and the spine rises from 

 its anterior margin ; in one instance I have seen this spatu- 

 late spine forked at the extremity and of excessive length. 

 At a later period of growth the pore is often covered over, 

 sometimes with a yellow membrane, sometimes with a calca- 

 reous lid. The oral opening has four spines, often of great 

 length ; in one case the lower spines were forked at the 

 extremity. In older zooecia an avicularium with oval 

 mandible is placed high up on each side of the oral opening ; 

 and in mature specimens the surface of the zooecium is 

 granulated. 



On Hypothyris psittacea in Lang Fiord. Other specimens 

 in my collection are from Gray Hook, Spitsbergen, 90 

 fathoms, on stone (F. A. Smitt) ; " Finmark " {F. A. Smitt) ; 

 Greenland, off Holsteinborg, 57 fathoms, on Hypothyris and 

 Pecten islandicus ('Valorous,' 1875) ; Greenland, on Hypo- 

 thyris (from Copenhagen Museum) ; Gulf of St. Lawrence, 

 on shell {Whiteaves). The species would seem to be 

 especially fond of the shell of Hypothyris psittacea as its 

 dwelling-place. 



Forteckning, &c." in 1874. In that paper he restricted the term "forma 

 dura" to his figure 17, and called it Discopora cruenta (Normau). 

 It was not, however, my Lejnxdia cruentn, and llincks subsequently de- 

 scribed it under the name Monoporella sinnulifeva (Ann. & Mag. Nat. 

 Hist. ser. 6, vol. iii. 1889, p. 431, pi. xxi. fig. 3, and vol. ix. p. 1.j2, hut 

 not var. prfBclara). 

 * hopv, a spear. 



