136 



formede, tandede Takker; Længdestokken er 0.168™ 

 Tverstokken 0.100""", Fig.. 29. 



og 



Tentaklerne ere vel bepantsrede med Spilder, og her 

 er Spindelformen den hyppigste ; men imellem Spindlerne 

 sees baade Køller, Klubber og enkelte Firlinger. Spind- 

 lerne ere stærkt takkede og ofte forsynede med lange 

 Takker i en eller begge Ender, hvorved de faa et grenet 

 TJdseende; de ere fra 0.196— 0.216™'" lange og fra 0.028 

 —0.040*" brede, Fig. 30. 31. 32. Køllerne ere som 

 Spindlerne vel forsynede med Takker, der her ere bredere 

 og mere tandede, forresten gaa Spindlerne og Køllerne 

 meget over i hverandre. Køllerne ere fra 0.176 — 0.188™™ 

 lange og fra 0.036—0.040'"™ brede foroven, Fig. 33. 34. 

 Firlingerne ere korsformede, meget smaa, næsten glatte • 

 Længdestokken er 0.044"™, Tverstokken 0.036"™. Fig. 35.' 

 Paa Pinnulerne ere Spiklerne meget mindre; de ere dels 

 tynde, sparsomt takkede Spindler, fra 0.084 — 0.116""" lange 

 og fra 0.016-0.020""* brede, Fig. 36. 37; dels smaa, tak- 

 kede, fladtrykte Klubber fra 0.080—0.116""" lange og fra 

 0.036—0.040"™ brede foroven, Fig. 38. 39. 



Paa Svælget er 6 enkle Spikelrækker, 3 paa hver 

 Side med et bredt, spikelfrit Mellemrum, der danner Ryg- 

 og Bugpartiet, Fig. 40. Spiklerne ere temmelig flacle, 

 have mest Spindelformen, ere mere eller mindre takkede 

 og stundom spaltede i den ene Ende; de ere fra 0.056 — 

 0.188""" lange og fra 0.012—0.044""" brede, Fig. 41. 42. 

 43. 44. 



Farven. 



Hele Zoanthodemet er hvidt og fuldstændigt vandklart. 



Findested. 



Station 363. Nogle Exemplarer, siddende paa Rørene 

 af Onuphis conchylega, hvori Dyret levede, og i Regelen 

 paa den Del ai Røret, hvor Analenden vendte hen, uden 

 at Basaldelen dækkede for Rørets Aabning. Ved at ob- 

 servere Polypkolonien i et Glaskar viste det sig, at efter 

 nogen Tids Forløb begyndte Anneliden at krybe et Stykke 



viously spoken of; the one form is closely beset with papillæ, 

 and has a transversal arm of which the one half is small 

 and acuminated and the other broad and truncate at the 

 extremity. The longitudinal arm measures 0.204™'", and 

 the transversal arm 0.128™'" (PL XX, fig. 28). The other 

 form is somewhat more regular but, here, also, the trans- 

 versal arm has its one half broader than the other half. 

 The entire cross is adorned with closely placed, foliform, 

 dentated spikes. The longitudinal arm measures 0.168 mm 

 and the transversal arm 0.100""" (PI. XX, fig. 29). 



The tentacles are well sheathed with spicules and, 

 here, the fusiform is the most frequent spicular form, but 

 between the fusees, both subclavates and clavates are seen, 

 and also a few quadruplets. The fusees are strongly spi- 

 cate and, often, are furnished with long spikes in one or 

 both of the extremities, which imparts to them a ramous 

 appearance; they measure from 0.196 — 0.216™™ in length, 

 and from 0.028—0.040™™ in breadth (PL XX, figs. 30. 

 31. 32). The subclavates are, like the fusees, well supplied 

 with spikes which are, here, broader and more dentated ; 

 the fusees and subclavates pass, otherwise, very much into 

 each other. The subclavates measure from 0.176 — 0.188™™ 

 in length, and from 0.036 — 0.040™™ in breadth above 

 (PI. XX. figs. 33. 34). The quadruplets are cruciform, 

 very small, and almost smooth; the longitudinal arm mea- 

 sures 0.044'"™, and the transversal arm 0.036""" (PL XX, 

 fig. 35). On the pinnules the spicules are much smaller, 

 they are, partly, thin, sparingly-spicate, fusees, measuring 

 from 0.084—0.116""" in length, and from 0.016—0.020"»» 

 in breadth (PL' XX, figs. 36. 37) and partly, small, spicate, 

 flattened clavates measuring from 0.080 — 0.116'"™ in length, 

 and from 0.036— 0.040""" in breadth above (PL XX, figs. 

 38. 39). 



On the] gullet, there are 6 single spicular series, 3 

 on each side, with a broad intermediate space devoid of 

 spicules, which forms the dorsal and ventral part (PL XX, 

 fig. 40). The spicules are pretty flat and, generally, are 

 of fusiform; they are more or less spicate, and are occa- 

 sionally fissured in the one extremity; they measure from 

 0.056—0.188™'" in length, and from 0.012— 0.'044 m ™ in 

 breadth (PL XX, figs. 41. 42. 43. 44). 



Colour. 



The entire Zoanthodem is white and completely 

 pellucid. 



Habitat. 



Station No. 363. A few specimens seated on the 

 tubes of Onaphis conchylega, in which the animal lived, 

 and, in general, on that part of the tube where the anal 

 'extremity pointed, without the aperture of the tube being 

 however obstructed by the basal part. On observing the 

 polyp-colony in a glass vessel, it appeared, that on the 



