REPOET ON THE PENNATULIDA. 41 



Fig. 



29. Scleroptilum grandijlorum, KolL, A, natural size ; B, a part of the rachis three times 



the natural size. 



30. Protoptilum aberrans, KolL, A, natural size; ^, three times the natural size; 1, 



dorsal, 2, ventral side. 



31. Trichoptilum hrunneum, KolL, A, natural size ; B, part of the rachis three times the 



natural size. 



32. Umhellula durissima, KolL, A, dorsal; B, ventral side. 



33. The same, upper part, three times the natural size. 



34. UmheUula gilniheri, KolL, A, ventral aspect of the whole fragment; a, swelling of 



the stalk with zooids ; B, dorsal side of the upper part. 



35. UmbeUida leptoccmlis, KolL, fragment from the ventral side. 



36. Umhellula simplex, KolL, from the ventral side. 



37. Umbelhda Imxleyi, KolL, A, natural size ; B, upper part three times the natural 



size. 



38. Umbelhda carpenteri, KoU., A, dorsal aspect ; B, ventral side of the upper part. 



39. Three young forms of Umbelhda carpenteri, KolL, A and B from the ventral side, 



C from the dorsal side. 



40. Umbelhda carpenteri, part of the stalk, about twelve times the natural size, to show 



the ramified tentacles (t) of the zooid. The shorter tentacles are in part broken. 



41. Umbelhda magniflora, KolL, upper part, natural size. 



42. Part of the lower swelling of the stalk of Umbelhda magniflora, from Station 146, 



to show the zooids, three times and a half the natural size. 



43. Kophobelemnon ferrugineum, KolL, from the doi'sal side. 



44. Kophobelemnon, sp., from the side. 



45. Kophobelemnon burgeri, Herkl., A, from the dorsal ; B, from the ventral side. 



46. Renilla miUleri, M. Sch., part of frond ten times the natural size ; j:>, polyps 



retracted ; q, groups of zooids. 



(ZOOL. CHALL. ESP. PART II. 1880.) B 6 



