l86 CALIFORNIA ACADEMY OF SCIENCES. 



cheiropter, and, in 1840, it was also applied to a form of 

 ophiuridea. Li pur a was, in 181 1, used by Illiger to de- 

 note a genus of pachyderms, and, in 1819, the nearly re- 

 lated name of Lipurus was given to a marsupial.) But I 

 cannot well understand why the generic term Anurof ho- 

 rns Nic should be abandoned. The reasons given by 

 Tullberg for retaining it (Sv. Pod., p. 55) seem to me 

 quite satisfactory. It is true that the Anurophorus laricis 

 of Nicolet was, in 1842, placed by Bourlet in the genus 

 Adicran/ts, and that Gervais, in 1844, placed it in the 

 genus Lipura; but as we know with certainty to which 

 form Nicolet applied the name, and that he used it as 

 early as 1841, I think we are not only entitled, but also, 

 on account of its undoubted precedence, obliged to retain 

 it. Nor can I agree with the author when he retains in 

 the genus Achorutes Tempi, only the forms that want 

 anal spines, proposing a new genus Schoturus for those 

 of its forms that have such appendages. It seems as if 

 this alteration would easily create some confusion. 



From the well defined genus Anurida Laboulb., the 

 author excludes the species granaria, regarding it as the 

 type of a new genus only on account of its having no 

 ocelli. But if this were a sufficient reason for such an 

 arrangement, the consequence would be the exclusion of 

 Sminthurus ccecus Tullb. from the genus Sminthurus 

 Latr., and of Isotoma fimetaria (Linn.) Tullb. from the 

 genus Isotoma Bourl. 



Gen. Achorutes Templeton. 



Achorutes viaticus Tullberg. 



Bluish black. The extremities are biungiiiculatc. The 

 dentes furculce are thin and twice or thrice as long as the 

 mn crones, which arc digit/ 'form. The anal spines arc 

 only a little longer than the -papilla on which they are 

 fixed. Length 1-2 mm. 



