514 ON HYDROIOS FROM THE CAPE VERDE ISLANDS. [May 28, 



Warren, E., 1906. — "On Tuhularia solitaria, sp. n., a hydroid 

 from the Natal Coast " ; Annals of the ISTatal Gov. Mus., 

 vol. i. part 1. 



Wetsmann, a., 1883. — Entstehung der Sexualzellen bei den 

 Hydromedusen. Jena. 



EXPLANATION OF THE PLATES. 

 Plate XXIIL 

 Fig'. 1. Coryne (?) duhium, sp. ii. A complete colony to show abniKlance of 

 branching. X 4. (p. 491.) 



2. Coryne (?) dubium, sp. n. Fragment, showina: polj'ps and origin of 



branches. X 30. (p. 491.) 



3. Campanularia mtitabilis, sp. n. Specimen from St. Vincent, with 



regenerated margin. X 20. (p. 504.) 



4. Gampanularia mtitabilis, sp. n. Specimen from St. Vincent, showing 



as5'mmetry. X 20. (p, 504.) 



5. Campanularia mutabilis, sp. n. Specimen from Porto Prava. X 20. 



(p. 504.) 



6. Sydractinia verdi, sp. n. Portion of colon}' with polyps in various states 



of contraction. X 20. (p. 498.) 



7. Sydractinia verdi, sp. n. Reproductive person bearing gonophores with 



ova. X 50. (p. 498.) 



8. Fodoooryne anecMnata, sp. n. Portion of colony with nutritive and repro- 



ductive person. X circ. 30. (p. 499.) 



9. Fodocoryne anechinata, s]).u. Medusoid before it is set free. X90. (p. 499.) 



10. Podocoryne anecliinata, sp. n. Chitinous tubes forming mesh-like basal 



expansion. X 25. (p. 499.) 



11. Opliiodes caciniforinis, sp. n. Colonies creeping u.pon fragment of worm- 



tube. Nat. size. (p. 500.) 



12. OpJiiodes cacmiformis,s]).T:i. General structni'e of colony. X 15. (p. 500.) 



Plate XXIV. 

 Fig. 1. Opiiiodes cacrnifoi'mis, s-p. It. Hvdranth, hvdrotheca nematophore, &c. X 40. 

 (p. 500.) 

 . 2. Sertnlaria verslnysi Nutt. Cluster of colonies. Nat. size. (p. 505.) 



3. „ „ Fragment of colony showing arrangement of 



branches. X 14. " (p. 505.) 



4. „ „~- Hydrothecfe from front. X 50. (p. 505.) 



5. ,, ,, Hydrothecse from side. X 50. (p. 505.) 



6. ,, ,, Gonangia. X 25. (p. 505.) 



7. AgJaopheiiia margiimta, sp. \\. Colonies. Slight! v reduced, (p. 509.) 



8. „ ., Hydrotheca?. X 50. (p. 509.) 



9. ., „ Corbula. X 40. (p. 509.) 



10. „ „ Leaf of corbula. X 70. (p. 509.) 



11. Lyfocarjms crossJandi, up. n. Colonies on leaf. Nat. size. (p. 511.) 



Plate XXV. 



Fig. 1. Lytocarpus grandis, var. unilaferalis, \ar. n. Fragment ot colony showing- 

 mode of branching. Nat. size. (p. 510.) 



2. Lytocarpus grandis, var. unilaferalis, var. n. Hj'drothecEe from base of a 



iiydroclade. X 50. (p. 510.) 



3. Lytocarpus c/randis, var. unilateralia, var. n. Hj'drotheca; from tip of a 



iiydroclade". X 50. (p. 510.) 



4. Monosfcechas quadridens (McCrady). Showina: cvme-like origin of stem- 



internodes. X 20. (p. 508.) 



5. Opliiodes caciniformis, sp. n. Protruded nematocyst. X 700. (p. 501.) 



Plate XXVI. 



Fig. 1. Soleniopsis dendriformis, gen. et sp. nov. Colony. Nat. size. (p. 495.) 



2. Lytocarpus crosslandi, sp. n. Phylactocarp. with single gonaiigium. 

 . ' (p. 511.) 



3. ., ., Phylactocarp. X 45. (p. 511.) 



4. „ „ Hydrothecai. X 60. (p. 511.) 



5. Sertularia Icevimarginata, sp. n. Colonies on a leaf. Nat. size. (p. 507.) 



6. \, Hydrothecse. X 60. (p. 507.) 



