I \. I '.I 



lo\\rr margin ; (lie Mlrkrl- \C|'\ -mall. sl| b-l ol Ml I M f. 



about ci<Jit to ten rows iii the widest pm-iimi. 



l,i- iio-tli from ba-e of arm- to | >st erior cm I. HI mill. : of liod\ 



i*."' mill.; of head, !." mill.; of tins. 1 ."> mill.; of arm-. 1. ! 



-'. !"> : :;. 18; 4, l:i mill.; of tentacles, i<> mill. 



M,ixx,r<'/inm'ttx Hot/, jf dupe, tfnhlf. <tn<i I !<il if<i.i\ \ . S. .">i > to 



K>() fathoms ; in St-ph-mlicr, with r-i;>, from the latter locality. 



I give (l(M:iih'<l description of tliis SJUMMTS l)cc;ni-r it h:is not 

 not, vet been lii:iiiv(l : its close rchitionship to //. papiUifer 

 api>;irent. As l have already intimated more than once, I believe 



tlint :i l;iruer :iei|ii:iint ;iiK-e with the cepli:ilopo<l:i will result in ;i 

 uiv.-it reduc-tion of so-e.-illed species; ch:i meters which .-ire fre- 

 quently detailed at k'li^tli as of specific impoilance, will le found 

 to l.e very variable. It is probable that both this and the fol- 

 lowing. //. s//A/a/-/x. are synonyms of E. papillifera, and that 

 tlio latter itself will fall into the synonymy of one of the older 

 described species.* 



11. si i;i.j:vis. Yen-ill. 



Lai-u'cr rind relatively stouter than the preceding species, with 

 the tins larger and placed farther forward, the front edi^e of the 

 larire, tree lob*.- reaching nearly to the ed^e of the mantle. Head 

 lariie and broad. Sessile arms more slender and less unequal in 

 size than the preceding, and with the suckers arranged in two 

 regular rows throughout the whole length. Ant'rior edi^e of 

 mantle scarcely sinuous, advancing; but little dorsally. Tpper 

 stii'face of head and body nearly smooth, but ill the larger si 

 meiis with a lew very small whitish papilla-, most numerous near 

 the front edge of the mantle. 



Length from base of arms to end of body, 40 mill. ; of body, 

 31 mill.; of head, 1 f> mill.; of fins. ~1(\ mill.; of arms. 1C, IT. 20, 

 i:> mill, respectively; of tentacles, 25 mill. 



Taken with the preceding Bpecies, and is the more common of 

 the two. in Massachusetts liny. The di!len-nces may prove to In- 

 only sexual, but t his cannot be determined without a larger num- 

 berof specimens. See remark^ under //. ////'////. 



/,'. /"J/^'//(/',va a synonym . of 

 21 



