ERRATA. 



Page 274, line 21 from tlie bottom, for Petascelisca read Peta- 



SCELIS. 



„ 276, „ 19 from the top, for Petascelisca read Petascelis. 



„ 582, „ 12 from the top, for Plate LI. read Plate LII. 



„ 602, „ 9 from the top, for Thalaceocoeax read Phaiacko- 



COEAX. 



„ 746, „ 7 from the bottom, for inornatus read dorsalis. 



„ 925,^,, 22 from the bottom, /or ScBOBicuLAEiA ?vacZ ScROBi- 



CUIAEIA, 



Plate TI. fig. 4. The mouth of LepraJia appressa, var. vinosa is 

 incorrectly represented; the description, p. 51, 

 is correct. 



