- 
BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 9. N:O 8. ( 
only near the ends a little radiate, reaching the median 
line, composed of elongated granules, which form longi- 
tudinal, somewhat wavy lines, crossing the strie at right 
angles. L. 0,07 m.m. B. 0;024 m.m. — St. Bartholo- 
mew. — Fig. 7. 2 — This form is named in honour 
of Dr. A. Gofts, who has largely contributed to the na- 
tural history of the West Indies. 
47: oN: lobata ScHwArtz (Rab. Alg. Eur. No. 2481). This 
exceedingly small form was found on alge, collected on 
the shores of St. Thomas. &L. 0,025 m.m. Fig. 8. 222. 
It has before been found near Vera Cruz. 
48. N? Strangulata GREv. (T. M. S. [N. S] XIV pag. 126 
Pl. 12 fig. 24) Virgin Ids. St. Bartholomew, not rare. 
49. Mastogloia ITelineckiana Grus. (Verh. 1863. PI. 5 fig. 12) 
Virgin Ids., St. Bartholomew, several specimens. L. 0,085 
mem. BI 0084 mm. StHEeL2 on 0501 m.m. 
Brebissonia (?) Weissflogii GRUN. IN LITT. Mr. GRUNOW 
has found in the celebrated Campeche Bay gathering a very 
interesting form, which probably may be found in the West 
Indies. With the kind permission of the author I can here 
publish its discription as well as a delineation. Mr. GRUNOW 
describes the species as follows: »Valve broad, rhombic lan- 
ceolate, with obtuse ends. Central nodule linear oblong, 
slightly constricted in the middle; terminal nodules somewhat 
distant from the ends of the valve. Strie radiating, punctate, 
12,5—15 in 0,01 m.m., reaching the narrow median line. 
TROSA ma. Bi 0:08. m.m... Hab: Campeche! Bay (com- 
municated by Mr. WEIisSFLoG). Fig. 9 252, 
50. Alloioneis (?) Grundleri Cr. & Grus. N. Sp. Broadly 
linear oblong, with cuneate apices; median line very ex- 
centric, somewhat arcuate; central nodule transversely di- 
latated. Strige transverse, composed of distinct puncta 
and reaching the median line, 11 in 0,01 m. m., leaving 
only a small area around the central nodule. — L. 0,075 
m.m.—0,098 m.m.; B. 0,028 m.m. Fig. 10. 2. Virgin 
lds., very rare. Campeche Bay (GRUNOW). The single 
West Indian specimen, which I have in my collection, 
agrees perfectly with a delineation of the form from 
Campeche Bay, kindly sent to me by Mr. GRUNOW. 
The name Alloioneis was proposed by SCHUMANN (Die 
Diat. d. H. Tatra 1867 pag. 73) and characterizised as follows: 
