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Published by way of the yankee Geophysical Union as a part of the Antarctic study Series.

The Antarctic examine sequence, an outgrowth of analysis performed within the Antarctic in the course of the overseas Geophysical yr, was once all started early in 1963 with a provide from the nationwide technological know-how starting place to AGU. it's a ebook sequence designed to serve scientists and graduate scholars actively engaged in Antarctic or heavily comparable study and others versed within the organic or actual sciences. It offers a continual, authoritative medium for the presentation of in depth and distinct clinical learn effects from Antarctica, relatively the result of the USA Antarctic learn software. this actual quantity comprises four papers.

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3 8 5 . Description. T h e skeleton consists of a welld e v e l o p e d lenticular veil o f tangential needles ar­ r a n g e d at the c a l y m m a b o u n d a r y a n d of several h u n d r e d radial tubes w h o s e p r o x i m a l ends c o n ­ v e r g e t o w a r d the c e n t e r of the disc. T h e radial tubes are small, slender, thin walled, w e a k l y silicified, a n d slightly tapered distally. E a c h radial tube b e a r s a distal c r o w n o f two to four ( g e n e r a l l y Fig. 9.

3, 8, 9, 10 Aulographis tetrancistra antarctic f o r m , H a e c k e r , 1908, p. 45, pi. 1, fig. 14. ) Aulographis tetrancistra Peters, 1929, p. 3 8 5 . Description. T h e skeleton consists of a welld e v e l o p e d lenticular veil o f tangential needles ar­ r a n g e d at the c a l y m m a b o u n d a r y a n d of several h u n d r e d radial tubes w h o s e p r o x i m a l ends c o n ­ v e r g e t o w a r d the c e n t e r of the disc. T h e radial tubes are small, slender, thin walled, w e a k l y silicified, a n d slightly tapered distally.

40 m m in d i a m e t e r a n d 0 . 2 - 0 . 3 m m wide. 68 m m ) . 30 m m in diameter. C o m p l e t e radial spines m e a s u r e d 0 . 5 0 0 - 1 . 4 6 4 m m . T h e t e r m i n a l b r a n c h e s are 0 . 0 2 4 - 0 . 0 3 8 m m long. C r o w n m e a s u r e m e n t s w e r e 0 . 0 2 4 - 0 . 0 3 8 m m . Fig. 8. AulograpJiis moJiri n. sp. x 4 0 0 . T h e distal e n d o f a radial tube. Collection. S p e c i m e n s o r i d e n t i f i a b l e frag­ m e n t s w e r e collected at 12 stations: 134, 145, 1 6 1 , 1 6 5 , 1 6 7 , 209, 5 4 1 , 546, 7 9 3 , 8 1 2 , 8 3 1 , and 1328.

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