SCHIZOPOD CRUSTACEANS—ORTMANN. 35 



tip is damaged. The postero-inferior spines are as long as the distance 

 from their base to the posterior base of the branchiostegal lobe (i-e- 

 sembling closel}^ Sars's tig. 3 on Plate IV). (A specimen from Station 

 No. 2980, also 55 mm. long, has the rostrum slightly shorter than the 

 carapace, and the postero-inferior spines arc only half as long as in 

 the specimen from the Mexican Gulf.) For the rest, this specimen 

 shows no differences; especially the epimeral plate agrees exactly with 

 the specimen from Station No. 2980, shown in my lig. 2h. The cara- 

 pace covers the anterior part of the second abdominal segment, rep- 

 resenting the maximum among my material, but this is probably due 

 to the method of preservation. It has the appearance of having been 

 put into strong alcohol at first, and consequently is much contracted. 

 In slightly j^ounger specimens from California the rostruiu is rela- 

 tively of the same length, and the postero-inferior spines at least 

 approach the condition found in the Gulf specimen. 



Localities represented in the U. S. National Miiseani. 



FKOM U. S. BUREAU OF FISHERIES STEAMER AlhatvOSS STATIONS. 



2384.— 1 young. Gulf of Mexico; 940 fathoms. 



2839. — 1 male, 1 female. Santa Barbara Islands, California; -Jrl-i. 



fathoms. 

 2919. — 1 female. Off' southern California; 984 fathoms. 

 2923.— 1 female. Off southern California; 822 fathoms. 

 2929.— 1 male. Off southern California; 623 fathoms. 

 2936. — 1 niale, 3 females. Off southern California; 359 fathoms. 

 2980.^ — 2 males, 1 female. Off southern California; 603 fathoms. 

 2986. — 1 young. Off" Lower California; 684 fathoms. 

 3127. — 2 females. Off central California; 62 fathoms. 

 3348. — 1 young. Off northern California; 455 fathoms. 

 3627. — 1 young. West of Cortez and Tanner Banks; 776 fathoms. 

 3670. — 1 female. Monterey Bay; 581 fathoms. 

 4333.-2 females. Off San Diego; 301 to 487 fathoms. 

 4334.-1 male, 1 female. Off San Diego; 514 to 541 fathoms. 

 4335.— 1 male. Off San Diego; 500 to 530 fathoms. 

 4336.— 1 male, 1 female. Off San Diego; 518 to 565 fathoms. 

 4337.-2 males, 1 female. Off San Diego; 617 to m) fathoms. 

 4339.-1 female. Off San Diego; 241 to 369 fathoms. 

 4351.-1 male ( 3^oung, 1 female. Off San Diego; 423 to 488 fathoms. 

 4353.— 1 female. Off San Diego; 628 to 640 fathoms. 

 4354.-2 young. Off' San Diego; 646 to 650 fathoms. 

 4379.-1 female. Off San Diego; 257 to 408 fathoms. 

 4380.— 1 female. Off San Diego; 530 to 618 fathoms. 

 4381. — 1 female. Off San Diego; 618 to 667 fathoms. 

 4382.-1 female, 1 young. Off San Diego; 642 to 666 fathoms. 

 4389.— 1 male, 3 females. Off San Diego; 608 to 671 fathoms. 



