CONTENTS OF VOL. V. 



VERTEBRATA. 

 1 A . MAMMALIA (SEAL-EMBKYOS). By DR. H. W. MARETT TIMS . (21 pp., 2 Pis.) 



TUNICATA. 

 By PROF. W. A. HERDMAN, D.Sc., F.R.S. . (26 pp., 7 Pis.) 



ARTHROPODA. 



(B) CKUSTACEA. 

 IX. ISOPODA. By MR. T. V. HODGSON . . . . . (77 pp., 10 Pis.) 



NEMERTINEA. 

 By PROF. L. JOUBIN (15 pp., 1 PI.) 



CCELENTERA. 

 V. MEDUSA. By MR. EDWARD T. BROWNE . . . . (62 pp., 7 Pis.) 



LICHENES. 

 By DR. OTTO VERNON DARBISHIRE . . (11 pp., 1 PI.) 



