352 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Luminescence in Crustacea.* — E. Kiernik has observed lumi- 

 nescence in the Copepods Chiridius obtusifrons and End/seta, in the 

 Schizopod Boreophausia inermis, in the eyes of Pasiphaea etarda, and in 

 a number of other forms. 



Notes on Palinuridae.f — W.uT. Caiman finds that Pmrulus Ort- 

 mann ( = Puer Ortmann) is a valid genus of Palinuridese, of which the 

 type species is P. angulatus Spence Bate. But the remaining species 

 referred to Puerulus, P. pellucidus Ortm., P. spiniger Ortrn., and 

 P. atlanticus Bouvier ( = Panulirus inermis Pocock), are founded on 

 specimens in a stage of development intermediate between the Phyllo- 

 soma and the adult form, called by Boas the " natant stage." The 

 above-mentioned P. spiniger Ortm., is the natant stage of Panulirus 

 versicolor (Latreille), and it passes into the adult form without any 

 perceptible increase of size, while preserving unchanged the general 

 pattern of coloration. The natant stage in Jasus differs from those of 

 Puerulus in possessing a median rostral tooth. 



Mediterranean Schizopods. J — W. M. Tattersall has examined the 

 rich material of Schizopods collected by the ' Maia ' and ' Puritan ' 

 during cruises in the Mediterranean. He has notes on thirty species, 

 including Par&rythrops lobiancoi sp. n., Pseudomma Tcruppi sp. n., and 

 Calyptomma puritani g. et sp. n. In Calyptomma the eyes are in the 

 form of an ocular lamina, resembling somewhat that of the genus 

 Pseudomma, partly hidden by the vaulted form of the carapace ; the 

 lamina is without any indication of a median cleft, absolutely con- 

 tiguous, and produced in front into two short pointed processes : the 

 visual elements are rudimentary. Of the thirty Schizopods discussed, 

 seventeen are recorded for the first time from the Mediterranean. 

 Some interesting tables showing distribution are given. 



Visceral Nervous System in Squilla mantis.§ — O. Police distin- 

 guishes an anterior and a posterior portion. In the anterior portion 

 there are three centres, two paired and one unpaired ; in the posterior 

 portion there are two paired nerves and one unpaired. The system is 

 described and compared with that in other Decapods. 



Studies on Liriopsidse.j] — Maurice Caullery has studied two Epicarids 

 belonging to the Cryptoniscid group. One of them, Danalia curvata, 

 is very common on Inachus scorpio, parasitised by Sacculina neglecta • 

 the other is Liriopsis monophthalma, parasite of Pelt og aster curvatus, on 

 Eupagurus meticulosus. He discusses the various phases in the life- 

 history of these forms, their Epicarid and Cryptoniscid larvae, the 

 mutual affinities of Cryptoniscids, and the castrating effect of Liriopsids 

 on the Rhizocephala, on which they are parasitic. 



* Zool. Anzeig. , xxxiii. (1908) pp. 376-80. 



t Ann. Nat. Hist. iii. (1909) pp. 441-6. 



X MT. Zool. Stat. Neapel, xix. (1909) pp. 117-48 (1 pi.). 



§ Tom. cit., pp. 144-8 (1 pi.). 



|| Op. cit., xviii. (1908) pp. 583-643 (1 pi. and 8 figs.). 



