128 Prof. M'lntosh's Kotes from the 



This author also gives a table showing the number of 

 hooks in the rows from the second to the nineteenth, and, so 

 far as can be judged, they seem to increase, as a rule, with 

 age and size. In the majority of the setigerous processes, 

 that is after the fourth, they are in a double row. 



In various small examples a triangular shield-shaped 

 elevation occurred on the dorsum between the fifth and 

 sixth bristled segments, with the broad end in the front or 

 bold transverse folds. In large examples transverse folds 

 in this region are not infrequent : such appear to be due to 

 contraction in preparing. 



The tubes are formed of greyish mud and are rounded 

 and generally cylindrical. They retain their shape in the 

 preparations, though Avhen pressure is applied by the fingers 

 they readily crumble. Some present transverse elevations 

 or ridges, and arenaceous foraminifera are included in the 

 thick coating of mud over the central tube of tough 

 secretion. A few of the large tubes are much more con- 

 sistent, since small stones and tough secretions enter largely 

 into their structure, whilst others have a very firm (brittle) 

 outer la3'er of secretion and brown mud, whilst the thicker 

 interior layer is softer. Moreover, the tube may be slightly 

 moniliform with an enlarged ring toward one end, which 

 tapers to a thin termination. Such brownish moniliform 

 tubes are coated with grey mud, showing that either a 

 change of site or a selection of materials had been made, 

 unless it is to be supposed that the secretion affects the hue 

 of the mud. In a few, hard flinty grains cause the firm tube 

 to have a surface like sand-paper. 



This is a northern form, abundant in the colder areas, but, 

 so far as known, it has not hitherto occurred in the British 

 area. A variety (M. sarsi, var. antarctica) has recently 

 been described by Arwidsson *, from Gi-aham^s Land, South 

 Georgia, and other parts of the Antarctic region; so that 

 the distribution of this species is noteworthy. 



5. On the Maldanidse ^j?-oc?/>V6? by Canon Norman 

 in Norivay. 

 The widely distributed Prnxillella prcetermissai Malmgren, 

 occurred at various stations, e.g. 38; a fragment of Prax- 

 illella gracilis, Sars, was also met with in Long Fjord, East 

 Finmark. Nicomaclie lumbricalis, O. F. M., came wuth frag- 

 ments of Axiotliella from 301 and other stations ; Pseudo- 

 clymene quadrilobata from Nos. 40.2 & 466 ; and Asychis 

 biceps from Station 44, 3 879. 



* Schwedischen Siidpol.-Exped. 1901-3, Bd. vi. 6, p. 32. 



