192 Mr. W. E. Hoyle on the 



is little elevated ; the last loculus occupies one fourth of the 

 length, and is emarginate, being bounded behind bj a more 

 or less evenly curved line ; the striated area is exca- 

 vated, so that the whole shell is thin ; the inner cone is well 

 developed^ with a thickened rounded margin, and encloses a 

 deep pit ; the limbs extend halfway along the striated area. 

 The spine is long, tapering, and curves gently upwards. 



Hah. South of Papua (Station 188), 28 fathoms. Four 

 specimens, ? . 



Sepia sulcata J n. sp. 



The Body is cylindrical in its anterior fourth, then tapering 

 gradually backwards, and pointed behind. The fins are one 

 fifth the breadth of the body, commence 2 millira. from the 

 anterior margin of the mantle, and approach within 5 millim. 

 of each other posteriorly ; the mantle-margin reaches far over 

 the head dorsally, and is evenly truncated below. The siphon 

 does not extend up to the inter brachial space. 



The Head is broad and the eyes very prominent ; in the 

 only specimen it is much retracted into the mantle. 



The Arms are subequal, the order of length being 4, 3, 

 2, 1 ; they are one third the length of the mantle, and taper 

 gradually to slender points ; the first are thin and rounded, 

 the fourth flattened ; each has a distinct ridge on the outer 

 side, which in the fourth expands into a broad membrane. 

 The suckers are in two series in the first and second arms, but 

 with a tendency to form four series in the others, more espe- 

 cially in the distal portions ; they are pedunculate and very 

 oblique, and the margin is marked with meridional grooves 

 and has a deep distal notch ; the horny ring is small, smooth, 

 and surrounded by a papillate area. The hectocotylus is 

 present along three fourths of the left ventral arm in the 

 form of a groove with convex bottom, bounded on either side 

 by a narrow fillet ; on either margin of the groove is a row of 

 minute suckers, which are larger and more distinct, and even 

 form two series on the ventral aspect ; the tip of the arm 

 bears two series of small suckers. The umhrella is better 

 developed than usual^ its greatest extent (between the lateral 

 arms) being up to the eighth row of suckers. The buccal 

 membrane has the usual seven points, but not very strongly 

 marked ; the outer lip is smooth and thin, the inner papillate. 



The Tentacle h as long as the head and body together, with 

 a slender and somewhat flattened stem ; the cluh is short and 

 rather broad, and has a protective membrane on either side of 

 the suckers, and a broad web on the dorsal aspect, extending 



