THE MOUNT DESERT REGION 267 



Phoxichilidiidae 

 PnoxiCHiLroiUM H. Milne-Edwards 



P. FEMORATUM (Ratlike). (G. 0. Sars, 1891, p. 21, pi. 2, 

 fig. 1.) Taken chiefly on piles, but dredged once on rock 

 bottom, in 70 feet o/water. Stations: DlOO; S 4, 12, 14, 

 24, 32. 



Order ACHELATA 



Pycnogonum Briinnich 



P. LiTORALE (Strom). (G. 0. Sars, 1891, p. 7, pi. 1, fig. 1.) 

 One specimen taken near the east end of the Moosabec Reach, 

 in abont 30 feet of water. Recorded as evidence that the west- 

 ern boundary of this species in shallow water is east of 

 Frenchmans Bay. 



LITERATURE 

 Norman, A. M. 1908 The Podosomata (= Pycnogonida) of the temperate 



Atlantic and Arctic Oceans. .Jour. Linn. Soc. Zool., vol. 30, pp. 



198-238, 2 pi. 

 Sars, G. O. 1891 Pycnogonidea. Norweg. North-Atlantic Exped., 1876-1878, 



pp. 1-163, 15 p]., 1 map, 1 fig. 

 Wilson, E. B. 1880 Report on the Pycnogonida of New England and adjacent 



waters. Rept. Comm. Fish., part 6 (1878), pp. 463-506, 7 pi. 



Class ARACHNIDA 



Order CHELONETHIDA (Pseudoscorpiones) 

 (False or Book Scorpions) 



I have here followed the systematic arrangement of J. C. 

 Chamberlin (1930). To his book and to the account in process 

 of publication in 'Das Tierreich,' by Max Beier, the reader is 

 referred for literature and descriptions. 



Group HETEROSPHYRONIDA 



Suborder HETEROSPHYRONIDA 



Chthonioidea 



Chthoniidae 



Chthonius C. L. Koch 



C. TETRACHELATus (Prcysslcr). One specimen under a stone 



on Bar Island, August 15, 1931. 



