OF THE TEMPERATE ATLANTIC AND ARCTIC OCEANS. 223 



absence o£ the serrated flattened spines so characteristic of most genera. The 

 ambulatory legs have the second coxal joint, as usual, about twice as long as 

 the first and third ; the femoral and tibial joints are subequal in lengthy the 

 second tibial slightly the longer ; the tarsus does not quite equal the 

 propodos in length ; these joints are very slender, and gradually attenuated 

 until they terminate with the long, slender sharp nail (fig. 14) ; the 

 propodos is not armed with any conspicuous spines, and the nail is 

 entirely destitute of supplementary claws. 



Caullery described and figured some objects which he regarded as clavate- 

 formed spinules. Meinert came to the conclusion that what Caullery saw 

 were simply spines with mud attached to their summits. He is most likely 

 right. They may have been a condition of the objects which I am about to 

 describe, but as far as my example shows these latter are not present on the 

 palpi, the position which Caullery's club-shaped spines held ; and Meinert^s 

 fig. 24 correctly represents the last five joints of the palpi. 



The specimen of this species which was dredged by the ' Porcupine ' was 

 mounted in gelatine shortly afterwards. The whole body in this specimen, 

 including the lateral processes, is covered with remarkable stalked stellate 

 bodies (fig. 11 represents portions of two lateral processes). They do not 

 appear to be spines, and if they were they might be compared with the 

 extraordinary covering of stellate spines which Dr. Caiman has recently made 

 known to exist on the carapace of a new Cumacean, Pseudodiastylis feroic *. 

 But the bodies on Paranymplion have a very different appearance from spines ; 

 fig. 12 represents one of them greatly magnified : they appear as though 

 directly connected wifh the dermis of the Paranymplion, to be flexible, and 

 to be in different degrees of expansion or contraction. Whether they really 

 are parts of the animal itself, or whether they are parasites upon it, is a 

 question which I am quite unable to decide, and which the future must be 

 left to determine. In my perplexity I sent this mounted specimen to 

 Copenhagen and asked Dr. Hansen to compare it with the numerous 

 specimens collected by the ' Ingolf ' Expedition. The Copenhagen specimens 

 did not show similar conditions, but the naturalists there were equally unable 

 with myself to determine what these peculiar organs or organisms are. Three 

 of the '■ Ingolf ' specimens were kindly given me by the authorities of the 

 Copenhagen Museum ; on them I can find no stellate bodies, but just in the 

 same positions I find the body and its lateral processes covered with minute 

 punctures, which it is possible are the stellate bodies in a closely contracted state. 



' Porcupine,' 1869, Stat. 17, lat. 54° 28' N., long. IP 44' W., in 1230 

 fathoms. This locality lies S.S.E. of Rockall, and in the British Area. 



The three specimens procured by the ' Caudan ' were from as many stations 

 in the Bay of Biscay. By the ' Ingolf ' Expedition it was dredged in Davis 

 * Caiman, The Cumacea of the ' Siboga ' Expedition, 1905. 



LINN. JOURN. ZOOLOGY, VOL. XXX. 18 



