204 OMISSIONS AND CORRECTIONS. 



3. Mecistocephalus guildingii Newport. 



Three specimens. These are so moulded and broken that it is almost 

 impossible to make much out; but in the characters of the head, they 

 seem to be identical with the West Indian species. 



4. Lithobius lapidicola Meinert. 



Two specimens, male and female. Joints of antennae 26; ocelli 8 or 9, 

 in three series; coxal pores male 2, 3, 3, 2, female 3, 4, 4, 3; spines of 

 first pair of legs, 0, 1, 1; of penultimate pair, 1, 3, 3, 2; of anal pair, 1, 

 3, 2, 0; spines of female genitalia stout, claw very distinctly tripartite, 

 middle lobe not much longer; length male 7 mm ; female 8 mui . 



It is very probable that these specimens are not identical with L. lapi- 

 dicola, a European species; but as they are rather mutilated I have hesi- 

 tated to describe them as new. 



