564 Notices of Memoirs. — Prof. T. R. Jones and W. K. Parker. 



figured and separately named in the plate of Mendon Foraminifera. 

 To render our work more useful to Ehizopodists and Bibliograpliists, 

 we proceed to take the figures in succession, noting that, as we 

 before stated, the grouping on the plate has a more natural associa- 

 tion of allied forms than that shown by the numerical order. 



PL xxvii., fig. 1, Miliola ovum = Lagena globosa. 2, Nodosaria tur- 

 gescens is one and a half of the last chambers of a compact variety of the 

 simple N. ovicula. 3, Textilaria striata (1838) ; 4, T. sulcata; and 5, 

 T. dilatata (" T. hrevisf 1838"), belong to Ehrenberg's T. striata, a 

 subspecies or notable variety, worthy of a binomial term. 6, Text, 

 glohulosa (1838) is the small or young form of T. gibbosa, D'Orb., 

 and for convenience is often referred to by the name given by 

 Ehrenberg. 7a-d, T. linearis = Bolivina punctata. 8, Text, aculeata 

 (" T. aspera, 1838, in part ") is a thick-walled form of Textilaria 

 gibbosa, produced and aculeate on the edges at the outer angle or base 

 of each chamber, and is conveniently distinguished by the name 

 here given. 9a, 6, Grammostomum pacliy derma (" Text, aciculata, 

 1838, = several thin species of Grammostomum"), and 10, Gr. angu- 

 latum, ai-e specimens of a coarse-shelled Bolivina punctata. 11, Gr. 

 poly stigma = Text, sagittula. 12, Gr. Thebaicum seems to be an 

 oblong Textilaria agglutinans with a growth like that of T. sagittula ; 

 but Gr. Thebaicum, jdI. xxiv., figs. 20, 21, certainly appears to be 

 Bolivina dilatata. 13, Gr. platy stigma is Bol. dilatata. 14, Poly- 

 morpJiina asparagus is Virgulina squamosa ; so also is 15, Grammo- 

 stomum lingua. 16, Gr. macilentum is a very neatly Textilariform 

 V. squamosa. 17, Strophoconus efflorescens is a rather twisted 

 V. squamosa. 18, Grammostomiim (Polymorphinaf) myoglossum is a, 

 fragment of apparently a V. squamosa of regular growth. 19, Loxo- 

 stomum subrostratum, and 20, Lox. rostratum, are varieties of Text, 

 agglutinans, becoming Bigenerine (passing into Bigenerina) by the 

 aperture getting more and more terminal in successive chambers 

 (fig. 20 shows the more advanced stage of the transition). 21 and 

 22, Lox. aculeatum is a pouting Textilaria, tending towards Sagrina 

 rugosa, D'Orb. (Heterostomella, Eeuss). The aperture is entire (not 

 ragged or prickly, as shown in figures of some PolymorpliincB in 

 other plates), and lipped, as in Uvigerina. The edges of the shell 

 are aculeate by the production of the base of each chamber. See 

 above, p. 508. Fig, 23, Strophoconus polymorphus = Virgulina 

 Schreibersii. 24, Str. spicida = V. squamosa ; so also 25, Grammo- 

 stomum gracile. 26 and 28, Strophoconus polymorphus, and 27, Str. 

 (Grammost.f) ovum?, are Virg. Schreibersii. 29, Proroprorus cretce 

 = Polymorphina Thouini. 30, 31, Grammobotrys ? Farisiensis = 

 Sphceroidina bulloides ; and probably also 32, Pleuriies cretce. 33, 

 34, SphcBroidina Parisiensis = (33, probably, and 34, certainly) Sph. 

 hulloides. 35, Guttidina aculeata, and 36, Gut. turrita, are Verneiiilina 

 pygmcea, Egger ; but 35 has the outer margins of its chambers more 

 or less aculeate. 37, Nonionina ? ocellata is Cristellaria cultrata. 

 Figs. 38-45 and 47 are various individuals of the neat little variety 

 of Planorbulina farcta, known as Pi. ammonoides, Eeuss, sp., very 

 common in the Chalk. (38a, b, 39, and 40, PlanuUna micromphala 



