4 ARKIV FÖR ZOOLOGI. BAND Vi. N:0 3. 



Lovenella corrugata Thornely. Pl. 1, Fig. 5. 



The material consists of only a small fragment with a 

 few hydrothecae. These are cylindrical, fluted on their upper 

 half and corrugated below, borne on short pedicels, which 

 are annulated throughout. Length of the theca from the base 

 to the crenulated margo 0,8G4 — 0,896 mm, the breadth 0,416 — 

 0,448 mm. Operculum conical with 10 — 12 flaps. Gonothecae 

 wanting. — The specimens agree well with those described 

 by Thornely, but the hydrothecae are somewhat shorter. 



Locality : West of Aden, 12° 35' N., 44° 39' E., 26 fathoms, 

 gritty bottom. (Vega-Exped. ) 



Cuspidella grandis Hincks. Pl. 1, Fig. 6. 



Locality: Patagonia, Cape Valentyn 1896, sparingly on 

 Bryozoa (Swed. Exp. to Patagonia). This species is new to 

 South America, but found on the Atlantic and Pacific Coasts 

 of North America. 



Diphasia digitalis (Busk.) 



Locality: West Coast of Sumatra, Bungusbay 1891 (Dr. 

 C. AuRiwiLLius). Sparingly coUected and sterile. 



Thujaria interrupta Allm. 



Colonies attaining a height of 10 cm. Stem not fascicled, 

 slightly geniculated, pinnately branched. Branches alternate, 

 11 — 15 mm in length. Hydrothecae close together, suboppo- 

 site, arranged in groups of 3 — 5 pairs, the groups separated 

 by very deep constrictions. Hydrothecae tubular, 0,512 — 

 0,576 mm in length and 0,128 — 0,160 mm in breadth, with 

 the distal portion bent outwards. Their adcauline wall is alto- 

 gether adnate to the branch, except for the distal extremity. 

 Margin of the hydrotheca provided with two lateral teeth. 



Locality: East India, Paumben, 2 fathoms, Apr. 1889 

 (Dr. K. Fristedt). Only sterile specimens collected. 



Idia pristis Lmx. 



Locality: East India, Paumben, 2 fathoms, Apr. 1889 

 (Dr. K. Fristedt). Six sterile colonies collected. 



