ENTEROPNEUSTA* TU RBELLARIA. , Verm . 41 
Nassau Tornaria (pp. 428-431). With regard to the relation of Tornaria 
to the Echinoderm larva, first in importance is the identity in the two 
cases of the anterior euteroccel and its dorsal water-pore. There is 
reason to believe that the ancestor of Tornaria had two of these water- 
pores, as indicated in the adult of B. Jcupfferi, and as author has found in 
one specimen of B. lcowalewskii , where its presence was probably atavistic. 
Sometimes Auricular ia possesses two such water-pores, as shown by 
Ludwig and others. Iu all cases where two water-pores are present, they 
both communicate with a single unpaired enterocoel. In both groups the 
anterior enterocoel comes into intimate connection with the so-called 
“heart.’’ The course of the longitudinal ciliated band is practically 
identical in the two larvae — the differences being capable of an easy 
explanation (see pp. 418 & 419). As to the differences between the two 
larvae, author mentions, among others, the absence of an apical plate, 
eyes, and circular ciliated band in Auricularia. As to relationship of 
Balanoglossus to Vertebrates, author follows Bateson, adding some original 
observations on the gill-slits. 
TURBELLARIA. 
New Genera, Species and Varieties. 
v Amphichcer'us , n. g. ; Graff (3). 
Bipalium Icewense, var. viridis , n. var. ; Leiinert, p. 310. B. manubri- 
atum, Sharp, n. sp. 
Gonvoluta lacazii , p. 62, roscoffensis , pp. 66-70, Roscoff ; Graff (3) : 
n. spp. 
* Enantia, n. g., for E. spinifera, n. sp., Trieste, id. (1). 
Geoplana adce , lucasi , M'mahoni , alba , hoggii , sugdeni, mediolineata , 
quadrangulala , walhallce , jletcheri , Victoria, Dendy, (1) pp. 73-78, n. spp. 
G. quadrangulata , var. ivellingtoni, n. var. G. ventropunclata f howitti } 
Victoria, Dendy (2) ; G. ventrolineata, dubia , G. alba , var. roseolineata , 
n. var., howitti, var. obsoleta , n. var., G. adce } var. extralineata } n. var., 
Victoria, id. (3) ; G. dendy i, fro sti, Victoria, Spencer, pp. 86-88 : n. spp. 
^ Monoporus, n. g. ; Graff (3). 
Rhynchodemus simulans , Victoria, Dendy (3) ; R. victoria , Victoria, 
id. (1) p. 79 : n. spp. 
Fresh Descriptions, Anatomy, Histology. 
Dendy (1) : Geoplana ccerulea , Moseley, and G. quinquelineata , Fletch. 
& Ham., pp. 70-72. 
Dendy (4). 
Graff (2, 3) : monograph of Acosla. 
Koningsberger. 
Leiinert : Bipalium Icewense , pp. 330-342, Geodesmus bilineotus. 
