260 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 23 



PLATE 42 



Fig. 1. Semipallium (Juxtamusium) nutans (Philippi), 1845. 

 Beagle Channel, Tierra del Fuego. Height: 28 mm; length: 

 26 mm. (Grau collection.) P. 



Fig. 2. Left valve of same species, same locality; most ribs medium 

 brown, a few uncolored. 



