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representing tliat diffused portion of the reflux of the
equatorial enrrent which passes northwards outside
tlie "West Indian Islands,
On th e 2 6 th Ave s o u n d e d in 2 ,6 5 0 fa th om s . S e r ia l
t em p e r a tn r e - s o n n d iiig s Avere ta k e n to 8 0 0 fa th om s ;
d u r in g th e o p e r a t io n hoAA'ever Ave m e t Avith r a th e r a
s e r io u s lo s s , fo r th e s o u n d in g - lin e Avith s e v e n th e r m
om e te r s a t ta c h e d fo u le d th e p r o p e lle r a n d Avas
ca r r ied aAvay. On th e 2 7 th , th e d e p th Avas a g a in
2 ,6 5 0 fa th om s , Avith a h o t tom o f g r e y is h ‘ red c la y .’
H ie traAA'l AA’a s p u t OA’er in th e fo r e n o o n , a n d a s th i s w a s
h y fa r t l ie g r e a t e s t d e p th a t w h ic h Ave h a d a t t em p t e d
to em p lo y i t , aa’c lo o k e d Avith g r e a t in t e r e s t to th e
r e su lt. In th e eA’e n in g th e traAvl r e tu r o e d to u s in
s a fe ty , a n d c o n ta in e d a c a r id id sh r im p , a n um b e r o f
Avorm-tubes c om p o s e d c h ie fly o f sm a ll fo r am in ife r a ,
tAvo e x am p le s o f a n ir r e g u la r s e a -u r c h in , a n d a
n um h e r o f o p h in r id e a n s r e fe r r ed to th e g e n e r a
Amphiura a n d Ophioglypha. The c r u s ta c e a n m a y h e
a p e la g ic fo rm l iv in g a t in t e rm e d ia t e d e p th s , fo r su c h
Ave h a v e r e a so n to b e lie v e e x i s t a n d a t t a in a la r g e
s i z e ; th e a n n e lid aa’c h a d n o t a n o jo p o r tu n ity o f
d e t e rm in in g a s th e tu h e s o n ly w e r e p r e s e n t ; th e
u r c h in is a sp e c ie s neAv to s c ie n c e a n d o f g r e a t
in t e r e s t. Calymne relicla (F ig . 1 0 2 ) is a t fir s t s ig h t
e x t r em e ly l ik e th e n o rm a l A n a n c h y t i d a s , in d e e d it
h a s a c lo s e g e n e r a l r e s em b la n c e to th e c om m o n c h a lk
fo rm AnancJiyles ovala; m a n y im p o r ta n t c h a r a c te r s
h ow e v e r s e p a r a te i t fr om th e g e n u s Ananchyles,
a n d u n t il Ave haA'e h a d a n o p p o r tu n ity o f c om p a r in
g th e Avhole s e r ie s I am n o t p r ep a r e d to s a y th a t
th i s g e n u s m a y n o t fin d i t s p la c e in a f am ily a s y e t
u n d e fin ed , AA'itli Bourlalesia, Acesle, a n d Aerope, an d
397
some wonderfn] new forms Avhich Ave have since found
in the Southern Sea. The test is 30 mm. in length
and 20 mm. in height, and very elegant and symmetrical
in form ; the outline is oval, slightly truncated
posteriorly ; a longitudinal ridge from which the sides
of the shell slope off with a pleasing curve runs along
the apical surface. The oral surface is nearly flat,
and a slight keel runs round its edge, defining and
limiting it very much, as in Ananchyles; a fasciole
F i c t . 1 0 2 .— C a lym n e r e lic ta , W y v i l l e T h o m s o n . A , o r a l ; B , a p i c a l a s p e c t , s l i g h t l y e n l a r g e d .
( N o . 5 4 . )
folloAvs the keel, only leaving it and appearing for a
little part of its course on the oral surface in advance
of the mouth. The mouth is OA'al; its long axis in
the direction of the antero-posterior axis of the test.
The excretory opening is on the posterior surface
above the line of the peripheral ridge. The apical
area is, if not disjunct, greatly produced; hut it is
difficult to make out the exact relations of some
of the terminal plates of the ambulacral and inter