NO. 3 MIDDLE CAMBRIAN FOSSILS FROM IDAHO RESSER 7 



ALOKISTOCARE Lorenz, 1906 

 ALOKISTOCARE NORMALE, n. sp. 



Plate I, fig. 14 



This species is much Hke A. subcoronatiiin except for its larger size. 

 Also the furrows, eyelines, and distribution of relief in the brim are 

 different. 



Locality 37n. 



Holotypc.—V.S.^M. no. 95028. 



ALOKISTOCARE NODULIFERUM, n. sp. 



Plate I, figs. 52, 54 



This species has a wide brim, the test is finely and closely granu- 

 lated, the brim is striated beneath the test, and two nodes are situated 

 in the dorsal furrow a short distance forward of the occipital furrow. 



Locality 37n. 



Holotype and parafypc. — U.S.N.M. no. 95029. 



ALOKISTOCARE NATALE, n. sp. 



Plate I, fig. 53 



A. nafale is nearest like A. noduliferum. It has a brim of about the 

 same size, and other proportions are similar. Small nodes are also 

 present in the rear portion of the dorsal furrow. However, the sur- 

 face of A. natale, which is finely granulated, has, in addition, scattered 

 larger granules. 



Locality 37n. 



Holotype. — U.S.N.M. no. 95030. 



ALOKISTOCARE NACTUM, n. sp. 



Plate I, figs. 41, 42 



A. nactum is characterized by a medium brim, on which a rather 

 wide flat rim is differentiated by its upturned position. 

 Locality 37n. 

 Holotype and parafypc. — U.S.N.M. no. 95032. 



ALOKISTOCARE NOTHUM, n. sp. 

 Plate I, figs. 51, 55 



This species is more normal than A. nactmn, which it resembles. 

 A medium swelling causes the rim to be less even in width throughout. 

 Locality 37n. 

 Holotype and paratype. — U.S.N.AL no. 95031. 



