THE SEKTULARID.E. 89 



SERTULARELLA FUSIFORMIS | Hincks). 

 (I'late XX, tigf. S-4.) 



iSM></<iri'<i ;'.*i';iic/i.i HINCKS, Ann. an>l M;IL'., ""I scr., VIII. Isiil, p. -'<'.',. 

 ^i-Hii/iirinjiixijiiriiiif NIIUMAN, Uuport Ilritish As.-<ir.. iltilh iiiccliiii.', 1SH7, p. L'OO. 

 ,s, rtii/iii-i-l/ti jtiisijiiriitix HJXCKS, I'.rit. Ilyilroiil X.o,,pli.. I si is. p. L'4:i. 



SertulareUafiisifoJTnisGBAESTfE, Ark /.ml. lust., \Vim un.l Trirst, V, lss-1, p. 356. 



Serttdarettafusiformw I'IEI-EK, /unl. An/., VII, iss-t. p. is:,. 



,s; i-iiiiiii'fliu fiixiftirniix ( ' Mirs, Prodromus Fftunae Medit., I, iss.'i, p. 12. 



Sertularettafusifarmis HDYI.K, Jimrn. Linn. Sue., /iil., XX, Is'.in, p. 4(iH. 



SertulardlafusiformiaTnoRNELV, Trans. Bin). Sue. Liver] ..... I, VIII, isia, p. 7. 



Sertularellafugifcrrmu B.MIK , Kail. .hiL'nsl. Ak., ('.\X\I\', isns, p. :!7. 



/S', liii/nri'l/ii jimijiiriii'iK II.\KTi..\rn, Ki'visioii ilcr Si-rtilUiri'lla-Artcn, I!IO(I, p. S5. 



,Si -i-fn/in -in Jiitsij'iii'iiiix WIIITK vvi->, *':i(. ^lariiic Invert. Ivi^tnii ('anaila. lllill, p. 26. 



SertulareUafuyiformifToKKEY, Ilyilroida nf I'aeilir Cnast, I'.iii'J. p. iil. 



Tr<>i>l>xin,. Colony minute, stem slender, slightly zi^za.e;, jrcncrally onbranched, uniiu- 

 latccl at the base and below each Imli'otlieea; hydn>tlier;e alternate, bent in opposite directions, 

 elongate, somewhat flask-shaped, smooth, aperture ( |iiailridentate. with an operculuni composed 

 of four pieces; each hydrotheca and its internode of a fusiform li^ui'e. 



G-onosome. (ronanyia clone-ate, slendei', tapering aho\e and below, i-itbed across, pro- 

 duced at the upper extremity into a short neck and toothed, sprin^iii.y; here and there just below a 

 hydrotheca. Height about a quarter of an inch. 



Dintfilintinii. Devonshire, Knjjland (Hincks): Hebrides (Norman): (iulf of St. ]jawreiu-e 

 20(1 fathoms (Whiteaves); San Francisco, California (Torrev); Mediterranean (X'arus): (?) New 

 Zealand, iS'. simplex Hutton. 



I have never seen this specif-, and the above description is taken almost entire from the 

 original description by Hincks, the only changes being in the substitution of the words 

 " hydrothecse " and gonangia" for 'cells" and "gonotliec-ie" and in the addition of the words 

 " trophosome " and "goiiosome" to conform to the plan of description of this work. 



SERTULARELLA SOLITARIA, new species. 



(IMatc XX, li-s. ld-11.) 



Trophosome. Hydrocaulus a monosiphonic stolon from which spring pedundo which b< ar 

 hydrothecae and have one or two annulations near their miildle. Ilyilrotlieca- radial l\ s\m 

 metrical, long, fusiform, tapering basally where they merge insensibly into the peduncles, and 

 distally to a square neck and quadrate margin which is slightly everted and is produced into 

 four strong equidistant teeth. The entire body of the hydrotheca is strongly and evenly 

 annulated. ( )percuhnn of four Haps. The hydranth was seen in one specimen, and what 

 appeared to be opercnlar muscles were evident. 



(fniiiixiniii-. Not known. 



Dixtriliition. Shallow water, between Klcuthera and Little Cat Islands, liahamas. 

 Dredged by the Bahama Expedition from the Stale rnivt-rsitv of Iowa. Found yrowiiuj- a- a 

 parasite on y<-ni<it<>j>lii>riix grandis. 



This curious form is placed provisionally in this genus. At first thought one would con 

 sider it a young Specimen of 8 specie's belonging to the riif/nxii group, which as vet had de\ eloped 

 but a single hydrotheca. I have, however, not seen any young >pecimen of anv regular sertu- 

 larian in which the hydranth and operculum had been fully formed and in which there was no 

 indication of another hydrotheca or internode springing from the side of the tirst hydrotheca. 

 If the hydrotheca' were sessile the species would be very near Allman's genus ( '<t/<ttnj>/i<,,-ii. 

 which lie regards as a campanulariaii, but which Hartlaub 1 and the present \\ritcr regard as 

 belonging to the genus .V, flnl,ii', 11,1 on account of the form of the hvdrotheca and particularly 

 the margin and operculum. .V. .<///<///'</ a]>pears to be almost exactly inli'rmediiite bet \\een the 



1 Revision der Sertalarella-Arten, limo. p. 12. 



