1878.] < LIGHTNING ' AND ' PORCUPINE ' EXPEDITIONS. 409 



valuable , work of Professor Seguenza, notwithstanding that my notions 

 rfthe distmctive character of certain species do °not aS S 



Genus II. Terebratella. 

 fig T 2rioo R p.) ELLA SPITZBERGE ^> Davidson. (Plate XXIII. 

 Terebratella spitzbergemis, Dav. in Ann. & Ma- N H 1SV. 

 8 > T* V\ X \*S- 3i B - C - »• P" 2= - P- 164, pi. Wfig 3' 



Davfs S & G h o D A; V T al ° r0US ' E ^ edi ? D ' Welli "? t0n Channel, 

 depths 20 6 9 ?fatho m i u' L "™"* '*** J * P ™> ™ d Shet ^ :' 



Genus III. Argiope. 

 Typical. Having three septa. 

 1- Argiope decollata, Chemnitz 



rofTt d ' co "'" a - Ch ' Coneh - Cab - ™- p- *>. pi. ;s. eg,. 



Argiope decollata, B. 0. ii. p. IS ; v. p. 164, pi. six. „„ 3 



Blatrme^V "'"''J? TSf* G ™lm; TerebraMa aperta, De 



Subgenus Cistella. With a single septum. 



2. Argiope neapolitana, Scacchi. 



Terebratula neapolitana, Sc. Oss. Zool. 1833 ii p 18 



Mediterranean Adriatic, ^Egean, and Canary Isles : 30^20 f 

 lne number of ribs varies from two tr> «»l>« v- ^-v r. 



sacra i£ -ESSStS 



tub ;;, cular l", fron *' b - v ** a >"™' "^HSw t c z e 



rn.ddle, and by tl,e septum in ,he lower ?al« befng notched across 

 P&<J-*« ™»4,, which it seems he did r,ot thea t" " h 



