176 ACTINLE OF ALBATROSS EXPLORATIONS — ^FMURRICH. 



family, Plielliiiii', wliich was sei)aiated from tlic Sagartidu' by Verrill 

 ('(57), and recognized by Andres ('83) and Ilertwig ('88). 1 have in a pi'e- 

 vioiis paper (1889) proposed the separation of the Sagartidje into the 

 snbfarailies Sagartinai and Phcllina', but since ITaddon's subfamily is 

 somewhat more extensive than and probably may include the genus 

 Fhellia^ it seems advisable to adopt it. 



Subfamily Sagaktin^k. 



Sagartidje with the ectoderm naked, theacontia being emitted from 

 tlie mouth and through the column wall, in which definite openings 

 (cinclides) are pr(>sent (always?) for their emission. 



(J.nns SAGARTIA. 



Sagartina^ with smooth column destitute of verrucfe and with uo 

 s])ecial arrangement of the cinclides; margin t<'ntaeulate; tentacles 

 concealed in contraction, the si)hincter being fairly strong. 



In alcoholic specimens it is n ot always possible to be certain as to 

 the arrangement of cinclides, and some of the forms which I assign to 

 this genus may possibly be more properly referable to some other Sa- 

 gartian genus. The absence of verrucie, the tentaculate margin, and 

 the concealment of the tentacles in contraction are points which assist 

 in determining the assignment of a form to this genus. 



22. Sagartia lactea, .sj>. iion . 

 I'liitc wvui, Fij;s. 72-75; riatc xxix, Kij;. 7f). 



Nos. 710-95(5 Station 27S5. Lat. 18^' 0!V S. ; Innj.. 74 :W W. Depth, 449 fathoms. 

 Numerous s])('ciuiCMs. 



The specimens were adherent to a dead coral, and were for the most 

 part strongly contracted, forming a low rounded cone with a widely 

 expan<led base (PI. xxviii. Fig. 72). In these the tentacles were com- 

 pletely concealed, but in a few forms the contraction was not so great, 

 and the tentacles were partly visible. Such si)ecimens measured from 

 1.1 to 1.3"" in height, with a diameter at the ui)i)er part of the column of 

 about 1.1"" and at the base of about l..") or 1*'"'. 



The base is provided with a brown membranous covering, evidently 

 a secretion of its ectoderm cells. The ectoderm in all the specimens 

 has been entirely nuicerated away from the mesoghea of the column 

 wall, wliicli has aniilky white color. It is tolerably firm and parch- 

 ment like, tliough not very thick, and is for the most i>art smooth, 

 though in some specimens more or less wrinkled by contraction. In 

 the upper part of the column delicate longitudinal ridges can be seen, 

 which become stronger as they ai)])roach the margin and recall the 

 eai)ilular ridges o[' AciinaiKjc; they are not, however, visible in the less 

 contracted specimens, and seem to be produced by the contraction of 

 the si^hincter, and to be due to a certain extent to the pergaraentaceous 



