KONGL. SV. VET. AKADKMIENS HANDLINGAK. BAND 25. N:O 9. 19 



paries tubi crassus, parte infiata magis tennis; pallida aut fusca; Rhabdarnminae abysso- 

 rum SAKS forsan forma pygrnaea. 



Nostra typo BKADYI validior. 



Rhabd. linearis KRAUY, 1879, Ret. llhiz. Chall. Exp., Qu. Journ. Micr. Sc. (n. s.) 19, p. 37, t. 3, ff. 10 11. 

 BKADY, 1884, Chall. Rep. 9, p. 269, t. 22, ff. 16. 



Hub. mare Atlaut. boreale inetr. 1670 rani; ad Groenlandiani metr. 100, long. ram. 7 10. 



R. abyssorum SAKS. 



Tab. IV, figg. 67, 68. 



Tubi 3 5 radiatim dispogiti, iiunc tenues, nuric incrassati, plerumque ex camera 

 irregulari contrail exeuntes, cylindrici aut apicem versus attenuati, singuli apertura apicali 

 paullum coarctata pra'diti; rufbbrunnea, scabra. 



Fig. 67: brachiis tennibus, e mari Lofotensi Norvegia>, profund. mctr. 530 (M. SAKS). 



Fig. 68: magis robusta e sinu Baffini, Groenlandiai, profund. metr. 400. 



Bhabdammina abyssorum M. SARS, 1868, Vidensk. Selsk. Forh. 1868, p. 248 (sine descriptione). 



BRADY, 1884, Chall. Rep. 9, p. 266, t. 21, ff. 113. 



Hub. Mare Atlanticuin boreale, sinus norvegicos et groenlandicos metr. 350 1,000 passim, locis quibusdam frc- 

 quentissima; long. mm. usque ad 23. 



forma affinis: 



Tubo unico subrecto suturis subconstrictis, colore magis fusco. 



R. diSCl'eta BRADY, 1884, Chall. Rep. 9, p. 268, t. 22, ff. 7 10. 



Ehabdopleura DAWSON, 1870, Gulf. St. Lawrence; Canadian Natur. (n. s.) 5, p. 176, f. 7. 



Hab. c. pvrecedente minus frequens. 



BOTELLINA CARPENTER. 

 B. labyrinthica BRADY. 



Tab. IV, tigg. 6986. 



Tubiformis, apertura forainine irregulari simplici aut poris nonnullis exhibita irre- 

 gularilms; interne costis et granis sabulosis irregulariter cancellata; parte primordiali ple- 

 rumque paullum inflata, interne sublaevi, pariete tenui, interdum perforata; ex sabulo crasso 

 constructa, sivpe ina>qualis, squalida, nido verrnis similis. 



Forma nostra a typica statura minori, cancellis internis minus ovolutis, incornpletis 

 differt; grisea aut ferruginea. 



Fig. 69, 73: exempla ordinaria. 



Fig. 70: tubus longitudinaliter apertus, cancellas exhibens. 



Fig. 71: sectio transversa tubi. 



