2/4 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 45 



favorable to justify the hope that an examination of good specimens 

 may throw further light upon its systematic position. In the mean- 

 time we propose to arrange the species as a doubtful Vinella. 



VINELLA REPENS Ulrich 



(Plate LXVIII, 1-3) 

 1890. ViiicUa re pens Ulrich, Jour. Cincinnati Soc. Nat. Hist., xii, p 



174, fig. I. 

 1893. Vinella repens Ulrich, Geol. Minnesota, ni, p. 114, pi. i, figs. 1-5. 

 1897. Vinella repens Simpson, Fourteenth Ann. Rep. State Geol. New 



York for 1894, p. 604, fig. 222. 

 Not Vinella repens Vine, 1892, Proc. Yorkshire Geol. & Polyt. Soc, xii, 



p. 84, pi. iii, figs. 1-4. (^Probably Hetcronema, sp. undet.) 



Original description. — " Zoarium repent, the stolons delicate, 

 thread-like, often longitudinally striate, straight or fiexuous; from 

 0.06 to 0.1 1 mm. in diameter; bifurcating often and sometimes 

 arranged in a radial manner about a central node. Where best pre- 

 served, very small pores arranged uniserially along the center of the 

 upper surface of the threads ; about 1 1 in 2.5 inm. Zooecia unknown, 

 probably deciduous," 



We have no amendments to make to the original description of 

 this species reprinted above. A few additional specimens have been 

 found, but these add nothing to the features observed in the type lot 

 of specimens. 



In Vine's last paper on Paleozoic Ctenostomata (loc. cit.), he 

 identifies this species among his Wenlock fossils, and distinguishes 

 another form as a variety contorta. Neither the descriptions nor the 

 figures given by Vine are satisfactory, but using them in connection 

 with private information we have arrived at the conclusion that they 

 are quite distinct from this species and probably not even congeneric. 

 Both are believed to belong to Hcteronema and possibly to the 

 species which we describe as new under the name H. capillare. 



Occurrence. — Phylloporina beds of the Black River formation, St. 

 Paul, Minnesota. 



Cat. No. 43,148, U. S. N. M. 



VINELLA RADIALIS Ulrich 



(Plate LXVIII, 4) 



1893. Vinella radialis Ulrich, Geol. Minnesota, iii, p. 113, fig. %b. 



In this delicate species the radial disposition of the threads is well 



developed. In the original and only known specimen there are four 



complete centers and rays and parts of two others. The rays are 



rigid, 4 to 7 mm. long and vary in number in each set from seven to 



