388 DR MURRAY ON THE DEEP AND SHALLOW-WATER MARINE FAUNA 



Hali'porus curvirostris, Bate. 

 *HemipencBus speciosus, Bate. 



,, spinidor sails, Bate. 



*H('pomadus incrmis. Bate. 

 '*Notostomus mnrrayi. Bate. 



Pentacheles Icevis, Bate. 



Pontophilus gracilis, Bate. 



* ,, profundus. Bate. 

 *Sergestes profundus,^ Bate. 



Willcmcesia leptodactyla (Willemoes-Suhm). 



r 



Anomura : 



* Elasmonotus marginatus, Henderson. 

 *Galacantha hellis, Henderson. 



Pavapagurus ahi/ssorimi,' M.-Edwards. 

 *Tylas'pis nnomala,' Henderson. 



Pycnogonida : 



* Colossendeis breinpes ,^ Hoek. 



* „ media, Hoek. 

 *Ni/mpho)} compactimij' Hoek. 



* ,, longicollum, Hoek. 



* ,, longicoxa,' Hoek. 



* „ proceruin, Hoek. 



' The species of this genus [Sergestcs] mostly live within 100 fathoms of the surface, but there is every reason to 

 believe that this one [Sergestes profundus'] resides near tlie bottom.— (Spence Bate, Zool. Chall. Exp., part 52, p. -129.) 



^ A certain amount of variation is noticeable in specimens [of Pampmjurus abyssorum] from dift'erent localities, 

 more especially as regards the amount of pubescence and granulation on the chelipedes and ambulatory limbs. In a 

 specimen from Station 133 [South Atlantic], the ophthalmic scales are bidentate, and the external prolongation of the 

 second antennal peduncular joint is dentate. In spite of these apparent incongruities, an examination of the numerous 

 specimens taken by the Challenger has convinced me that they all belong to a single species. . . . Parapafjurus 

 abyssorum is of special interest on account of its very extended distribution and deep-water habitat. It was taken by 

 the Challenger in all the great ocean beds explored (with the exception of the Southern Ocean between the Cape 

 and Australia), and nowhere in less than 1000 fathoms of water. [This species is recorded from Magellan Strait, 

 45 fathoms, but Henderson maintains that this is an error ; he says that a shallow-water habitat for the species is 

 quite out of the question.] It appears to be invariably associated with an Anemone which exerts a solvent action on 

 the Gastropod shell originally selected as a dwelling-place by the Hermit ; in many cases the shell has entirely 

 disappeared, and in others it is greatly reduced, while the Anemone forms a soft and saccular covering on the 

 exterior. — (Henderson, Zool. Chall. Exp., part 69, p. 88.) 



^ The single specimen [of TyUispis anomala] came from the greatest depth at which any Anomurous Crustacean 

 was taken Ijy the Challenger. The form of the abdomen points to the species having occupied some other 

 dwelling-place than the Gastropod shell usually selected by the soft-tailed Pagurids.— (Henderson, Zool. Chall. Exp., 

 part 69, p. 81.) 



^ This true deep-sea species [Colossendeis brevipes] was dredged from the greatest depth at which a Pycnogonid has 

 been found, viz., 2650 fathoms. — (Hoek, Zool. Chall. Exp., part 10, p. 72.) 



' I believe this species [Nymphon lomjicoxa] with its rudimentary eyes to form the transition from the shallow- 

 water species to the true deep-sea species. . . . Nymphon longicoxa and Nymphon compadum were obtained [at the 

 same Station] from a depth of 1100 fathoms. iV. longicoxa shows rudimentary eyes, those of JV. conipactum are quite 



