Miscellaneous. 91 



11. sp. ; Stylaster cornplanatus, ii. sp. ; Errina glabra, n. sp. ; Errlaa 

 cochleata, n. sp. ; Crypthelia Peircei, ii. sp. ; Distlchopora sulcata, 

 11. sj). ; Heliopora? tubulata, n. sp. ; Heliopora ? carinata, n. sp. ; /s/s? 

 (base of stem) ; SarcocUcti/on rugosum, n. sp. 



Hydroids : ?^Aoa pulchella, n. sp. ; Tuhularia crinis, u. sp. Fora- 

 minifera : Lagena striata, Mont., rare ; Nodosaria pyrula, D'O., 

 rare ; Dentalina communis, D'O., rare ; D. {agglutinans'i) ; Lingulina. 

 carinata, D'O. ; Textularia trochiis, D'O., common, very large, also 

 abundant in shoaler water ; T. agglutinans, D'O., rare ; Nonionina 

 scap>ha, rare ; Nonionina umhilicatula, Montg., rare ; CristeUaria 

 crepidula, F. & M., rather common ; Orhiculina adanca, D'O., rare 

 and only in a worn state ; its proper habitat is in the littoral zone ; 

 Amphistegina gihhosa, D'O., rare, and only young specimens ; it is 

 very common throughout the Gulf of Mexico in deep water ; GJohi- 

 gei'ina rubra, D'O., very abundant, also in the Orbulina form ; Gl. 

 Dutertrei, D'O., common ; PuUenia obliquiloculata, P. & J., rather 

 common ; PuUenia coarctata, n. sp., rather common ; Sphmroidina 

 dehiscens, P. & J., not common ; Rotalina cidtrata, D'O., very 

 common ; Rot. truncatidinoides, D'O., common ; Pot. Poeyi, D'O., 

 rather common ; Rotalina, two other species in single and imperfect 

 specimens; Bilocidina,sp. ; Trilocidina 3rongniartiana,WO., rare; 

 Quinquelocidina bicostata, D'O., rare. 



Many of the specimens of Poraminifera are filled up with a yellow 

 mass, like the first stage of transformation into greensand ; but the 

 process seems to stop here. 



Of sponges quite a number were obtained, at least a dozen species, 

 which have not yet been determined. Some of the detached spicules 

 are remarkable for their size — one, for instance, of the slender rec- 

 tangnlated sexradiate type of Bowerbank measiu'ing more than half 

 an inch. 



The vegetable kingdom was represented in this dredging by a 

 single specimen of a minute alga, Centroceras clavidatum, Agardh, 

 which. Harvey says was found abundantly at low-water mark at 

 Key West. In its branchlets was entangled a chain of a species 

 of Biddulphia. Other Diatoms are rather scarce and have not yet 

 been determined. We therefore find here, also, a confirmation of the 

 remark made in European seas, that vegetable life does not extend 

 to depths as great as are reached by animals, and that, therefore, 

 the greater number of deep-sea animals must be carnivorous. 



The dredge contained also a number of nodules of a very porous 

 limestone, similar in colour and texture to the limestone forming 

 the range of low hills along the shore of Cuba, but composed appa- 

 rently of the remains of the same animals which were foimd Living. 

 Thus our Deltocyathus, Caryophyllia, the various Pteropods were 

 recognized in the stone, and found also in various stages of fossiliza- 

 tion. The interstices between the larger forms are generally filled 

 up ^vith Poraminifera. 



On May 25th the dredge was sent dovra in 350 fathoms, outside 

 of the locality occupied on the 24th and 29th. It brought up only 

 a few dead corals — Caryophyllia formosa, Deltocyathus Agassizii, 

 Diplohelia profunda, the latter in numerous specimens, — also a 



