EXPLANATION OF THE PLATES. 



Plate X. 



FiG. i—in Leander Sqiiilla (Linni:). Forma typica. All the figures are 



taken from specimens tliat were coUected in the Svendborg Sund. — 1,1a 



and ih Cephalothorax etc. of ova-bearing females, long 54 and 55 mm., 



X3; Ie cai'apace and rostrum of an ova-bearing female, long 3G mm., X 3; 



ld 5'i> and 6^^ segment of the abdomen and caiidal fan of an ova-bearing 



female, long 59 mm., X3; 1^ extremity of the telson of this female, X 25; 



!ƒ antennal regiou of a male, long 45 mm., X 3, this male beiug one of 



the two in which the peduncle is just as long as the rostrum ; Igr antennal 



region of an ova-boaring female, long 60 mm., X^; l/i antennular flagella 



of an ova-boaring female, long 50 mm., X3; It mandibular palpus of an 



adult, ova-bearing female, X25; ij the three-jointed mandibular pal pus 



9-1-1 

 of tho ova-bearing female, with the rostral formula --7—, X25; Ife left 



4 



leg of the S"! pair of an ova-bearing female, long 55 mm., X3; il chela 

 of this leg, X5; lm toothing of the fingers of this chela, XI''; In carpus 

 of the S-i legs of an ova-bearing female, X 5- 



Fi(i. io — iv Leander Squüla (Linné), var. intermedia n. — io and ip cepha- 

 lothorax, rostrum etc. of adult, ova-bearing females, long respectively 01 

 and 55 mm., from the Goesche Sas, Oosterschelde, X3; l^y rostrum of a 

 young male, long 43 mm., from Brixham, X3; Ir distal part of the rostrum 



12 

 of tlio male, long 39 mm., from Rrixham, with the formula ^, XIO; Is 



antennular flagella of a female without eggs, long 65 mm., from the Straits 

 of Calais, in which the coalesced portion of the shortei- ramus is rnuch 

 longer than the rest, X3; it right leg of the 2^ pair of an adult, ova- 

 bearing female, long 61 mm., from the Goesche Sas, Oostei-schelde, with 

 slender carpus, X3: iu carpus of this leg, X5; iv the stouter carpus of 

 a female without eggs, long 51 mm., from Kats, Oosterschelde, X -^>- 



Plate XI. 



FiG. iw — iz-zzz Leander Squüla {Lmmi),\ar. elegans (R\tuke). — iu\ix, 

 iy cephalothorax, rostrum etc. respectively of an ova-bearing female long 

 40 mm. and of two young females without eggs, long 38 mm. and 36 mm., 

 all from the Bay of Sebasto}iol, X3; 1? antennal region of a young female 

 Avithout eggs, long 34 mm., from Sebastopol, X'i; 1-- antennular flagella 

 of the adult female with eggs, long 46 mm., from the Gulf of Naples, in 

 which the coalesced portion of the shorter ramus is shorter than the rest, 

 X5: izzz left leg of the 2^1 paii' of a young female, without eggs, long 

 42 mm., from the Bay of Sebastopol, X3; izzzz carpus of this leg, X5; 



