ATLANT. DEEP-SEA EXPED. 1910. VOL. HI.] 



PENEIDES AND STENOPIDES 



29 



Amalopenaeus Tinayrei Bouvier. 

 Gennadas Tinayrei, Bouvier 1908. 



This species resembles A. valens very much in ap- 

 pearance and seems to have a similar distribution hori- 

 zontally and vertically, though it is probably wanting in 

 the northeastern part of the area. 



Depth 



Day 



Night 



50—200 





20 



300—600 



6 



5 



750—1500 



3 



7 



Table of ca 



tches. 



(Hauls during night marked * ). 



St. 



Gear 



]m. w. 



Number 



Sex, size 



34* 



y 



400 



1 



?6 



42* 



1 sn 



200 



2 



? 7, 7 



* 



1) 



y 



300 



4 



8, 8, 7, 4 



45* 



y 



300 



3 



d" 6, 6, 6 



51* 



y 



300 



1 



Ca. 6 (defect) 



53* 



1 sn 



200 



3 



d* 6, 6, 6 



# 



y 



600 



2 



5, 5 



& 



3 In 



2600 



4 



7, 7, 7, 6 



,56* 



1 sn 



100 



1 



cT7 



* 



1 sn 



200 



1 



(7 6 



* 



VI 



y 



300 



1 



d*6 



n ' 



1 /a sn 



750 



3 



3, 3, 3 (defect) 



# 



3 In 



3000 



1 



6 



58* 



1 sn 



200 



1 



6 





y 



300 



2 



6, 6 



62* 



y 



2000 



1 



5 





3 U sn 



2500 



1 



6 



64 



3 /t sn 



2500 



1 



6 



67 



y 



1200 



4 



7, 6, 5, 31) 



80 



y 



1000 



1 



?7 



81 



3 In 



3000 



1 



?7 



82 



3 U sn 



1500 



1 



c?6 



84 



y 



1000 



1 



?6 





23 





41 





Amalopenaeus Alicei Bouvier. 

 Gennadas Alicei, Bouvier 1908. 



The appearance of this species is very different from 

 the other species of the same genus; the bright red is 

 replaced by a strong orange and no blue patches are 

 found. The eyes are very small and their pigment faded. 

 The adult specimens are of much greater size than the 



other species in the genus. The species is certainly 

 an inhabitant of the very deepest strata where the 

 amount of light is nearly imperceptible. From the table 

 of catches it will be seen that A. Alicei was never taken 

 above a depth of 1000 metres, even during night. 



The geographical distribution of A. Alicei is at pre- 

 sent not fully known but is probably very extended. 

 It has been taken during several of the Prince of 

 Monaco's expeditions in the North Atlantic, approx- 

 imately within the same area where the. "Michael Sars" 

 obtained it. 



Table of catches. (Hauls during night marked *) 



St. 



Gear 



m. w. 



Number 



Sex, 



size 



25* 



Vssn 



3400 



1 



c. 16 (defect) 





29 



y 



2000 



8 



11, 11, 10, 9, 5, 4 



4, 4 



35 



1 k sn 



4200 



1 



8 





45* 



y 



2000 



3 



12, 12, 10 





•J; 



4 In 



3000 



3 



12 (two def.) 





49* 



y 



2000 



3 



4, 4, 4, 





;l; 



4 In 



3000 



6 



15, 14, 13, 12, 9 





51* 



y 



3000 



1 



©10 





53* 



3 In 



2600 



32 



6—15 (mostly 12- 



-14) mm. 



56* 



y 



2000 



2 



14, 10 





» 



3 In 



3000 



4 



15, 13, 11, 9 





62* 



y 



2000 



1 



15 





» ' 



s /t sn 



2500 



1 



15 





* 



3 In 



3000 



2 



17, 16 





64 



y 



2000 



1 



7 





m 



3 k sn 



2500 



1 



8 





n 



3 In 



3000 



1 



cT13, ? 11 





80 



3 In 



3000 



1 



? 12 





82 



y 



2000 



1 



?11 





12 



19 





74 





*) The smallest may perhaps be an A elegans. 



Benthesicymus Sp. Bate. 

 Benthesicymus brasiliensis, Bate 1881. 



This species was taken by the "Michael Sars" at 

 st. 35 with trawl in a depth of 2603 metres. One defect 

 female, total length 105 mm. The specimen differs from 

 Bate's description by the presence of a very small spine in 

 the hepatical area and a very small tubercle between the 

 first pair of pleopoda. These characters may possibly 

 have been overlooked by Bate, and this assumption is 

 the reason why I do not propose a new name for the 

 single specimen at hand. 



B. brasiliensis has formerly been taken in the Southern 

 Pacific and the South Atlantic, in depths between 600 

 and 4300 metres. 



