On Hydrozoa and Polyzoa from the China Sea. 11 



Fig. 5. Portion of fig. 3. a, deeper eye in median transverse section ; b, 



portion splintered off; c, external eye: f, cuticle. Zeiss F, 



oc. 3. 

 Fig. 6. Portion of fig. 4. a, fragments of deeper eye ; b, external eye ; 



cu, cuticle. Zeiss F, oc. 3. 

 Fig. 7. Transverse section of foot immediately beneath the junction with 



the body, m, the four pairs of longitudinal muscles; m.c, 



mucous cells ; cu, cuticle. Zeiss F, oc. 3. 

 Fig. 8. Transverse section of foot three sections lower, showing consider- 

 able decrease in size. The lettering as in previous figure. Zeiss 



F, oc. 3. 

 Fig. 9. Fifth section of foot. The animal invariably dies with this region 



of the foot twisted. Zeiss F, oc. 3. 

 Fig. 10. Seventh section of foot. Zeiss F, oc. 3. 

 Fig. 11. Extremity of foot, a, the cup-like extremity; b, union of 



muscles. Zeiss F, oc. 3. 

 Fig. 12. Portion of cuticle under high power, a, cellular layer ; b and c, 



granular. Zeiss K, oc. 3. 



Plate II. 



Fig. 13. Almost vertical section of Rotiferon. b, <l brain ; " s, secretion ; 

 m, vestibule ; e, embryo ; ov, ovary ; cu, cuticle. Zeiss E, 

 oc. •'!. 



Fig. 14. Three sections later, showing the connexion between the lumen 

 in the " brain " and the vestibule. Lettering as in previous 

 figure. Zeiss E, oc. 3. 



Fig. 15. Median transverse section of " brain.'' cu, cuticle. The secre- 

 tion in central lumen is not figured. Zeiss F, oc. 3. 



Fig. 16. Median transverse section of Trypanococcus. cu, cuticle of Ro- 

 tiferon ; a, cyst containing cilia ; b, its opening. Zeiss F, oc. 3. 



Fig. 17. Formation of gastrula by epibole. Zeiss F, oc. 3. 



Fig. 18. Transverse section of ovary, ov, ovary ; a, an ovum ; b, mem- 

 brane of ovary being detached with ovum and forming the vitel- 

 line membrane. Zeiss F, oc. 3. 



II. — Report upon the Hydrozoa and Polyzoa collected by P. W. 

 Bassett- Smith , Esq., Surgeon R.N., during the Survey of 

 the Tizard and Macclesfield Banks, in the China Sea 7 

 by H.M.S. c Rambler J Commander W. U.Moore. By R. 

 KlRKPATRICK. 



[Plates III.-V.] 



Collections of the marine faunas of Tizard and Macclesfield 

 Banks were made by Mr. P. W. Bassett-Smith, and were 

 presented to the British Museum (Natural History) by the 

 Lords of the Admiralty. A list of the Hydrozoa and Polyzoa 

 obtained, with descriptions of new species, is given below. 



HYDROZOA. 



The collection of Hydrozoa from the Tizard and Maccles- 



