AMERICAN HYDROIDS. 139 



PLATE XIV. 



FIG. 1. Calrinia mirabilis Nutting. Portion of stem showing hydrothecse and gonangia (enlarged). 



2. Calvinia mirabiUs. Part of hydi'ocladium, side view (greatly enlarged). 



3. Calvinia mirabilin. Part of hydrooladium, front view (grratly enlarged). 



4. Sehhotriclia granllima (Sars). Showing branched hydrocladium (enlarged). 



5. Schizotricha gramUima. Part of hydrocladinui (greatly enlarged). 

 l). Schteotricha gracillima, Gonaugium (enlarged). 



PLATE XV. 



I Hi. 1. Scliizotricha dichotoma Nutting. Forked hydrocladium (enlarged). 



2. Sehizotricha dicliotoina. Part of hydroeladinm (greatly enlarged). 



3. Sfliizotricha dichotoma. Nematophorona branehlet of hydroeladinm (greatly enlarged). 



4. Schizotricha dichotoma. Gonangiam (greatly enlarged). 



5. Schi:otricha parviila Nutting. Portion of stem and hydrocladia (enlarged). 



6. Diplopteron tjitadricornt Nutting. Side view of hydrocladiuiu (greatly enlarged). 



7. Diplopteron quadricorne. Front view of hydrocladium (greatly enlarged). 



PLATE XVI. 



FIG. 1. Diplopteron grande Nutting. Side view of portion of a hydrooladium (greatly enlarged). 



2. Diplopteron grande. Hydrocladium, phylactocarp, and gouangia (enlargeil). 



3. Diplopteron longipinnii Nutting. Side view of ]>art of hydrocladiuiu (greatly enlarged). 



4. DipJopleroii lonijtpinna. Front view of part of hydrocladium (greatly enlarged). 



5. Polyplumularia arwuta Nutting. Part of stem and bydrocladia (enlarged). 



6. Polyplumularw armala. Part of hydrocladium (greatly enlarged). 



PLATE XVII. 



FIG. 1. Bipparella longicarpa Nntting. Part of hydroeladinm (enlarged). 

 2. Hippurella longicarpa. Hydrocladial iuternode (greatly enlarged) 

 S. Hippiirelhi luiigii-urpa. Phylactocarp aud gonangia (enlarged). 

 I. Cullicarpu gracili Fewkes. Part of hydrocladium (enlarged). 

 5. Callicarpa gracilis. Hydrocladial internode (greatly enlarged), 

 (i. Callicarpa gracilis. Phylaotocarp (enlarged). 



7. Salopians carinata Allman. Part of colony (enlarged). (After Altaian.) 



S. tlalopteri* rarinata. Part of hydrocladium, side view (greatly enlarged). (After Altaian.) 

 9. Halopteris rarinata. Front view of hydrotheciE (greatly enlarged), (After Alhuan.) 



10. Gattya Inimili.i Allman (enlarged). (After Altaian.) 



11. Guttija. Itttmiliy. Front view of hydrotheca (greatly enlarged). 



PLATK XVIII. 



FIG. 1. Jglaoplienia . rliyncliocarpa Allman. Part of hydroeladinm (greatly enlarged). (After Allman.) 



2. Ai/laop/itnia rhynchocarpa. Corbula (enlarged). (After Allman.) 



3. Aglaophtnia riijidu Altaian. Part of hydrocladium (greatly enlarged). (After Altaian.) 



4. Aglaoiilit'iiia r'njida. Corbula (enlarged). (After Allman.) 



5. Aglaoplienia ditliia (Nutting). Part of hydrocladium (greatly enlarged). (After Altaian.) 



(i. Aylaoplienin lo)ihocarp<( Allman. Part of hydroeladinm (greatly enlarged). (After Altaian.) 



7. Aglat>i>licni<i luphocari>a. l'"ront view of stem (greatly enlarged). (After Allman.) 



8. Atjlaopltenia lopliorarpa. Corbula (enlarged). (After Allman.) 



9. Afflaophenia apocarpa Allmau. Part of hydrocladium (greatly enlarged). (After Allman.) 



10. Aglaophenia apocarpa. Front view of stem (greatly enlarged). (After Allman.) 



11. Aglaoplienia apocarpa. Corbula (enlarged). (After Altaian.) 



PLATE XIX. 



FIG. 1. Aglaoplienia flowersi Nutting. Part of hydroeladinm (greatly enlarged). 



2. Aglaophenia flowersi, Corbula (enlarged). 



3. Aglaophenia ehijana Nutting. Part of hydroeladinm (greatly enlarged). 



4. Aglaophenia elcgans. Corbula (enlarged). 



5. Aiilaophenia ins'ii/iiis Fewkes. Part of hydroeladinm (enlarged). 



6. Aglaophtnia iiinlgui*. Hydrothe<-a (greatly enlarged). 



7. Aglaopheniu insignia. Corbula (enlarged). 



