486 Miscellaneous. 



because of its nearness to the Chambered Organ, tbe capsule of which 

 is the Governing Organ of the animal's movements ; the Chambered 

 Organ, however, is, as a rule, actually above the Infrabasals. 



P. 318, line 10, for " basals and infrabasals " read "infrabasals (as well as 

 basals)." The quotation from Wachsmuth and Springer, in inverted 

 commas, refers only to infrabasals ; the application of it to basals was 

 inaccurate and at the same time weakened my argument. Never- 

 theless a mere correction would uot be quite fair, for it is a fact, as 

 Mr. Wachsmuth bas elsewhere pointed out, that the basals also are 

 proportionately large in the young. 



Pp. 320 et seqq. The sign II -f is of course the same as Rx of p. 333 and 

 of Plate XIV. ; but R' is an intentional difference. An unfortunate 

 though blameless mistake in sending out the proofs prevented me 

 from correcting them quite as closely as I could have Avished. 



P. 323, 2nd and 3rd lines from bottom. Some may think that they see a 

 misrepresentation here. I have represented Messrs. Wachsmuth and 

 Springer as saying that the azygos plate is as much radial as inter- 

 radial. A correct quotation would have been " the azygous plate in 

 Baerocrinns is &c." But since they consider this plate in BaerucriuH* 

 to be homologous with the radianal (which I do not), and since they 

 in the very next sentence imply that it is in an ancestral stage, it is 

 clear that a simple and exact quotation would not have given their 

 complete meaning but would have tended to confuse the issues. 

 Accuracy, even pedantic accuracy, is not to be despised; but to one 

 summarizing an argument, the spirit usually seems more worthy of 

 retention than does the letter. 



On a few Californian Meduste. By J. AValter Fewkes. 



The author gives the results of his investigations on the Medusae 

 of the coast of southern California — chiefly of the Santa Barbara 

 Channel, into which the vast waters of the Pacific carry many strange 

 organisms. He describes a new Pelar/ia (P. panopyra), a new 

 Aurelia (A. labiata), which, however, closely resembles A. flavidula 

 of the Atlantic shores, and Poly orchis penicillata, A. Agassiz, a form 

 having intermediate characters (resembling both Anthomcdusao and 

 Leptomedusaa), for no otocysts occur on the margin of the umbrella 

 as in the former, while tbe reproductive organs are on the radial 

 canals, as in the latter. Another form, Dipurena, has an umbrella 

 like Sarsia, but with nine short, clavate, marginal tentacles. 

 The reproductive organs occur in the manubrium, as in the genus 

 mentioned. Microcampa, n. g., again, has six radial canals instead 

 of four, and a single, club-shaped, inflexible tentacle. It is pro- 

 bably an immature form. Another Medusoid is Ht/bocGdon — pro- 

 bably near Steenstrupia — in which the buds arise near the long solitary 

 tentacle bristling with rings of neniatocysts. Each bud has a single 

 tentacle. The interest in connexion with this form is the more vivid 

 since a very similar form is found in St. Andrews Bay, though in the 

 latter case the much larger buds present two tentacles, while in the 

 adult two shorter tentacles occur near the long one, each springing 

 from a similarly enlarged base. Mr. Fewkes figures these two ten- 

 tacles, but is of opinion they arise from the buds. As at St. An- 

 drews the buds showed two tentacles, further investigation on this 

 point would be satisfactory. Tbe author concludes his very inter- 



