348 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



1876. Lepralia jejjreysii Norman, Prelim. Report "Valorous" cruise, Proc. 



Royal Society No. 173, p. 208. 



1877. Lepralia trispinosa var Hincks, Contributions general history Marine 



Polyzoa, Annals and Magazine Natural History, ser. 4, vol. 19, p. 100, 



pi. 11, fig. 1. 

 1886. Smittia trispinosa var arborea Levinsen, Bryozoer fra Kara-Havet, 



Dijmphma-Togtets Zoologisk-botaniske Udbytte, p. 320 (16) pi. 27 



figs. 7, 8. 

 1900. Smittia trispinosa var lamellosa Waters, Bryozoa from Franz-Josef Land, 



Journal Linnean Society, Zoology, vol. 28, p. 88, pi. 12, fig. 19-21 



(opercula, mandible, synonymy). 

 1902. Smittia trispinosa var arborea Harmer, Morphology of Cheilostomata, 



Quarterly Journal Microscopical Science, new ser., vol. 46, p. 304, 



fig. 42. 



We believe that only figures 56 and 57 of Smitt, 1867, represent this 

 variety. Hincks, 1880, has already made this correction. Figures 53, 

 54, 55 represent the type of the species itself. We believe also that it 

 is necessary to add to the synonymy given by Waters. Hincks, 1880, 

 British Marine Polyzoa pi. 49, fig. 4. (v&r.jeffreysi). 



Description. — The peristomice is not raised, the aperture having a 

 quadrate appearance. The avicularia are triangular and are directed 

 upwards, usually by the side of the aperture; 17 tentacles; oral glands 

 (Waters). 



The peristomice bears a straight or convex proximal border. The 

 lyrula is wide. The avicularium is placed on the side of the frontal 

 and below the apertura. 



Geographic distribution. — Spitsbergen (Smitt): Greenland, 100 fath- 

 oms; Kara Sea; Davis Straits, 100 fathoms; Dogger Bank, Reykjavik 

 Harbor, Iceland, 15-20 fathoms. 



SMITTINA TRISPINOSA var. NITIDA (Verrill) Osburn, 1912 



1912. Smittia trispinosa var nitida Osburn, Bryozoa of Woods Hole region, 

 Bulletin Bureau of Fisheries, vol. 30, p. 246, pi. 27, fig. 66, pi. 30, fig. 88. 



History. — The incomplete figure of Verrill, 1875, has been diversely 

 interpreted by the authors. Moreover, under the same name, Verrill 

 has sent to the British Museum a small lot containing several species. 

 We believe that it is preferable to adopt the synonymy of Osburn, who 

 has been able to study abundant material collected in the same 

 locality as VerrhTs species. 



Description. — The peristomice is orbicular with a proximal concave 

 border (without pseudorimule). The lyrula is broad and there are two 

 small triangular cardelles placed a little higher. The avicularia are 

 arranged in every direction on the frontal; the small avicularia are 

 elliptical or oval; the large avicularia are spathulate. 



Geographic distribution. — Vineyard, Nantucket, and Long Island 

 Sounds, Buzzards and Narraganset Bays, low water to 20 fathoms 

 ( = 32 meters). 



