AG ALMA OKENI. 277 



Eschscholtz's specimen was too fragmentary for identification with anj- actual 

 species. But the facts that it was clearly an Agalmid, and that it had involu- 

 crate tricornuate tentilla (Eschscholtz, '29, taf. 13, fig. 4c) place it in Agalma. 

 This leaves Haeckel's Ceylon species nameless, and I propose haeckeli, until 

 the question of its validity is finally settled. 



Agalma okeni Eschscholtz. 

 Plate 17. 



Agalma okeni Eschscholtz, '25, p. 744, taf. .5, fig. 17; '29, p. 1,51, pi. 13, fig. la-Id; Lesson, '43, p. 510; 



Gegenb.\ur, '60, p.403, taf. 32, fig. 45, .50-52; Fewkes, 'S3b, p.81; '80, p. 964; Bedot, '96, p. 405. 

 Stephanomia Iriangularis + alucolntn + hcplacanlhn Qtjoy and Gmmard, '34, p. 71-76, pi. 3, fig. 1-7, 



16-18, 19-23. 

 Crystallomia polygonaln Dana, '58, p. 4.59, pi. 1; Bedot, '96, ]). 406; Chun, '97a, p. 84, fig. 18; '97b, 



p. 103; Lens and Van Riemsdijk, : 08, p. 70. 

 Cryslallodes rigidinn Haeckel, '69a, p. 49, pi. 10, fig. 65-71 : Chun, '88, p. 1 170. 

 Crystallodes rigida Haeckel, '8Sa, p. 40. 

 Cryslallodes vilraea Haeckel, '88a, p. 40; '88b, p. 222, pi. 17. 

 Agalma polygonaia Haeckel, 'S8a, p. 40; '88b, p. 366. 

 Agalma rigidtim Bedot, '88, p. 78. 

 Stephanomia incisa Schneider, '98, p. 120. 



Agalma, pourhdesii Agassiz and Mayer, '99, p. 180; Mayer, :00, p. 79, pi. 31, fig. 106, 107; pi. 32, 33. 

 ? Stephanomia amphitrides Chamisso and Eysenhardt, '21, p. 367, taf. 33, fig. 5a-5f. 

 ? Cuneolaria incisa Eysenhardt, '21a, p. 369. 

 ? Agalma merlensii Brandt, '35, p. 34. 

 ? Agalma breve Huxley, '59, p. 75, pi. 7. 

 ? Crystallodea mertensii. Haeckel, 'S8a, p. 40; '8Sb, p. 222. 



Agalma okeni was taken at Stations 4596, 4600, 4611, 4617, 4619, 4624, 

 4627, 4631, 4635, 4640, 4642, 4644, 4657, 4659, 4681, 4708, 4710, 4713, 4714, 

 4715,4716 ,4717, 4728, 4743, and at Station 3397, "Albatross " Panamic expedi- 

 tion, 1891. 



The records are mostly from surface hauls, but the .species was taken five 

 times in open net hauls from 300 fathoms, and twice in the trawl. The material, 

 which is in very good condition, consists of ninety-three entire specimens (fifty- 

 seven from Station 4600), varying in length from 5-95 mm., and of a great num- 

 ber of detached cormidia, bracts, and nectophores. 



I was also able to study an example from the Fiji Islands, which is probably 

 the type of the Agalma pourtalesii of Agassiz and Mayer, besides several excellent 

 specimens from the West Indies; none of these differ from the Pacific series 

 listed above in any important feature. 



Representatives of this species, both from the North Atlantic and from 

 Ceylon, have been fully described and figured by Haeckel ('69a, '88b). But 

 the very good state of preservation of the "Albatross" specimens and the fact 

 that I was able to study them alive, allows me to add some details to his account, 



