179 



izzzzz left leg of the 2'i pair of a young specimon, long 34 mm., from 



Rovigno, X 5. 



FiG. 2 — 2/" Leander adspersus (Rathke). All the figures are taken from 



specimens coUected in the Bay of Sebastopol. — 2, 26 Cephalothorax, 



rostrum etc. respectively of ova-bearing females, long 70 and 75mm., X«^; 



2rt rostrum etc. of a young female without eggs, long 57 mm., X^^; 2c 



caudal fan and 6th segment of the abdomen of an adult female with eggs, 



X3; 2d extremity of the telson of an adult female with the rostral formula 



4 + 1 



— - — , X 10; 2e antennal region of a female without eggs, long 68 mm., 



X3; 2/" mandibular palp of an adult, ova-bearing female, X 25. 



Fm. 2(/ — '21 Leander adspersus (Rathkk), var. Fabricii (Ratuke). — 2g 

 rostrum etc. of an adult, ova-bearing female, long 74 mm., from Denmark, X 3; 

 2/i, 2i rostrum etc. of ova-bearing females respectively long 52 and 57 mm. 

 from the Isefjord, X3; 2; antennal region of a male, long 46 mm., from 

 the Isefjord, X3; 'ik antennal region of a young female, long 50 mm., from 

 Denmark, X3; 2t mandibular palp of an adult female from Denmark, X 25. 



Plate XII. 



FiG. 2m — 2p. Type specimen of P. rectirostris Zahdach, coUected in the 

 Bay of Danzig, from the Museum of Königsberg. — 2m Cephalothoi'ax, 

 rostrum etc, X3; 2n outer antennular flagellum with shorter ramus, X '10; 

 2o leg of the i^t p-air^ X5; 2j9 leg of the 5*1» pair, X 5. 



FiG. 3 — 3w. Leander longirostris (H. Milne Ei»w.). — The ügures 3 — 3j 

 are taken from specimens coUected in the HoUandsch Diep, near Numans- 

 dorp. — 3, 36, 3c cephalothorax, rostrum etc. of adult, ova-bearing females, 

 long 71 and 68 mm., X 2 ; 3a extremity of rostrum of the first female, 

 X'13; 3d caudal fan and the two preceding segments of an adult, ova- 

 bearing female, long 69 mm., X3; 3e antennal region of an adult ova- 

 bearing female, long 70 mm., X3; 3/" antennular llagella of an adult, egg- 

 bearing female, long 69 mm., X 10; 3(/ scaphocerite of this female, X3; 

 3h mandibular palp ofan ova-bearing female, long 72 mm., X25; 3i right 

 leg of the 2'! pair of an ova-bearing female, long 69 mm., X3; 3/ chela 

 of this leg, X5; 3k right leg of the '2<^ pair of a male, long 60 mm., 

 from the HoUandsch Diep, X3; SI right leg of the 2^' pair of a young 

 male, long 53 mm., from the river Sheldt, near Antwerp, X3; Sm chela 

 of this leg, X 5; 3n left leg of the 2'^ pair of one of the specimens from 

 Oran, which in 1890 have been described by Dr. Ortmann under the name 

 of L. Edwavdsii, X 3. 



FiG. Aa — 4d Leander serratus (Penn.). — Aa Mandibular palp of an adult 

 female from the Straits of Calais, 46 of an adult ova-bearing female from 

 Rovigno, X'17; 4c left leg of the 2^ pair of an adult female, long 98 mm., 

 from the Straits of Calais, Ad of the larger female, long 105 mm., from 

 Rovigno, X 2. 



FiG. 5. Leander serratus (Penn.), var. Treillianus (Risso). Mandibular 

 palp of the female without eggs from the Gulf of Naples, X ^7. 



FiG. 6. Leander xiphias (Risso). Mandibular palp of a specimen, long 

 66 mm., from the Gulf of Naples, X'17. 



13 



