JÄDERHOLM, EXOTIC HYDROIDS IN THE SW. ZOOL. STATE MUS. 3 



slencler. Hydrothecae alternate, tubular, with everted mar- 

 gins, generally strongly reduplicated. 



Locality: Patagonia, Voilier Co ve, 10 fathoms, sand and 

 clay, ^2 1896. Only sterile specimens, growing on seaweed. 

 (Swcd. Exped. to Patagonia.) 



Lafoea gracillima (Ålder). 



Localit}^: Patagonia, Romanche Bay, 11 fathoms, shell- 

 bottom, 7n 1896; a sterile fragment. (Swed. Exped. to Pa- 

 tagonia.) 



Uebella calcarata (A. Ag.) 



Hydrothecae small, cylindrieal, straight or frequently 

 slightly cm:ved. Their length is 0,480 — 0,540 mm and breadth 

 0,160 — 0,220 mm. The length of the ]3edicel, which is very 

 short, reaches 0,06 mm. The mouth of the hydrotheca is often 

 slightly everted, without reduplications. 



LocaHties: East India, Paumben, two fathoms, Apr. 1889 

 (Dr. K. Fristedt), numerous specimens on stems and branches 

 of Thujaria mterrupta; West Coast of Sumatra, Sept. 1891, 

 only a few individuals gromng on Sertularella sp. (Dr. C. 



AURIWILLIUS). 



Leptoscyphus marginatiis (Allm.) 



Locality: Bermuda, Bayley's Bay, ^7. 1889 (Dr. C. Fors- 

 strand). Some small sterile specimens. 



Campanularia raridentata Ålder. Pl. 1, Fig. 4. 



A small hydroid, identical with the one described and 

 illustrated by Ålder and Hincks under this name, is found 

 amongst the material examined. This consists of a few slender 

 stems from a creeping stolon growing on a Sertularella. Hy- 

 drothecae much elongated, campanulated with 5 — 6 big mar- 

 ginal teeth, measuring in length 0,416 — 0,480 mm; their breadth 

 at the margin 0,16 — 0,19 mm. Gonothecae wanting. — This 

 hydroid is new to South America, but collected among other 

 things on the Pacific Coast of North America. 



Locality: Patagonia, Puerto Condor. (Swed. Exped. to 

 Patagonia 1896.) 



