BRYOZOA OF WOODS HOLE REGION, 261 



EXPLANATION OF PLATES. 

 PLATE; xvm. 



Fig. i. Loxosoma davenporti. 



Fig. 2. Loxosoma minuta, n. sp., drawn to same scale as fig. i. 



23.. The same, much enlarged, in contracted condition. 

 Fig. 3. Pcdicellina cernua, ordinary form of zooecium. 



33. The same, smooth form, the glabra of Hincks. 



30. The same, with spinous stalk, the cchinata of Sars. 



3C. The same, with spinous calyx, the hirsuta of Jullien. 



3d. The same, with spinous stalk and calyx. 

 Fig. 4. Barentsia -major. 

 Fig. 5. Barentsia discreta, partially expanded. 



5a. The same, detail of stalk. 

 Fig. 6. Crisia eburnea, portion of a branch. 



6a. The same, ooecium. 



6b. The same, ooeciostome much enlarged. 

 Fig. 7. Crisia cribraria, portion of colony, showing the long sinuate internodes. 



ja. The same, ooecium. 



yb. The same, ooeciostome much enlarged. 



Fig. 8. Crisia denticulata, portion of branch showing ovicell "and ooeciostome, from an English specimen. 

 Fig. 12. Stomatopora diastoporoides, colony, size of specimen S-j inch. 



123.. The same, detail of portion of colony at edge. 

 Fig. 13. Lichenopora uerrucaria, colony, size of specimen ]. 3 inch. 



i3a. The same, two views of a zooecial tube. 



i3b. The same, ooeciostome, at same magnification as 133. 



PLATE XIX. 



Fig. 9. Tubulipora atlantica, specimen from Crab Ledge. Drawn by H. J. Shannon, 

 pa. The same, detail of ovicell and ooeciostome. Drawn by H. J. Shannon. 



PLATE; xx. 



Fig. 10. Tubulipora liliacea, a colony from Vineyard Sound, characteristic of the species in this region. 



Drawn by H. J. Shannon. 



loa. The same, detail of ovicell and ooeciostome. Drawn by H. J. Shannon. 

 Fig. ii. Tubulipora fllabellaris , detail of ovicell and ooeciostome. Drawn by H. J. Shannon. 



PLATE XXI. 



Fig. 14. JEtea anguina, a single zooecium showing the basal enlargement. 



i4a. The same, showing membranous ooecium with embryo. 

 Fig. 15. Eucratea chelata, after Hincks. 



