124 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 57 



ditidse and Polynoidae, radiate or point from the axis of the body 

 backward and outward along the sides. An example of a recent 

 annelid covered with dorsal scale^ is furnished by Iphionella cimex 

 De Quatref/ and dorsal spines are a distinctive character on Lcctmo- 

 nice prodiicta willemcesii,' L. producta zvyinlli," and LcEtmonice aphro- 

 dites.* The form, size, and surface markings of the scales and spines 

 of Wizvaxia are well shown by the illustrations on pi. 21. In lig. 4 the 

 slender cylindrical proximal extension of the end of the scale and 

 also of the dorsal spines is well shown ; this extension probably con- 

 tinued down into the sac from which the scale began its growth. The 

 spines are probably modified scales, but they may correspond to the 

 dorsal spines of the recent annelids referred to above. A very fine 

 surface ornamentation consisting of minute, irregularly outlined, 

 transversely oblong spaces also occurs on the scales. The scattered 

 scales and spines are often very abundant. It was one of the spines 

 that Dr. G. F. Matthew described under the name of Orthotheca 

 corrugata.^ It is hoped that specimens showing the ventral surface 

 of the animal will be found in the near future. 



Formation and locality. — Middle Cambrian: (35k) Burgess shale 

 member of the Stephen formation on the west slope of the ridge 

 between ]\Iount Field and Wapta Peak, one mile (1.6 km.) north- 

 east of Burgess Pass, above Field; and (14s) about 2300 feet (701 

 m.) above the Lower Cambrian and 2700 feet (823 m.) below the 

 Upper Cambrian, in the Ogygopsis zone of the Stephen formation, 

 at the great " fossil bed " on the northwest slope of Mount Stephen, 

 above Field on the Canadian Pacific Railway ; both in British Colum- 

 bia, Canada. 



POLLINGERIA, new genus 



The generic and specific characters known are given under the 

 description of the species. 



Genotype. — PoIIingeria grandis, new species. 



Stratigraphic range. — The stratigraphic range is somewhat greater 

 than that of Wkedxia corrugata, with which it is associated in some 

 layers. The scales have been found extending up from the Phyllo- 

 pod bed (page 130) through about 30 feet of shale. 



^ Challenger Rept. Zool., Vol. 12, 1889, pi. 9, fig. 4. 



'^ Idem, pi. 6, fig. 3. 



*Idem, pi. 7, fig. 3. 



* Idem, pi. 7, fig. 4. 



"Trans. Roy. Soc, Can., 2d ser., Vol. 5, sec. 4, 1899, p. 42, pi. i, fig. 3. 



