Figure 1.

Class, family, type, and cell

(a) Families in the columnar class. (R: Retinula, L: Lamina monopolar, C: Centrifugal, Lawf: Lamina wide-field, Mi: Medulla intrinsic, Tm: Transmedullary, TmY: Transmedullary Y, Tlp: Translobula plate)

(b) Families in the interneuron class. Sm is novel. (Lai: Lamina intrinsic, Pm: Proximal medulla, Dm: Distal medulla, Sm: Serpentine medulla, Li: Lobula intrinsic, LPi: Lobula Plate intrinsic).

(c) Families in the cross-neuropil tangential and amacrine classes. For tangential families, axon and dendrite are distinguished graphically. All are novel except Lat. PDt and MLLPa are not shown for clarity. (MLt: Medulla Lobula tangential, LLPt: Lobula Lobula Plate tangential, LMt: Lobula Medulla tangential, LMa: Lobula Medulla amacrine, Lat: Lamina tangential, PDt: Proximal to Distal medulla tangential. A: Anterior. L: Lateral. V: Ventral)

(d) Cell types ordered by number of cells in each type, starting with the most numerous types. Cell counts are based on v783.

(e) Number of families (left), types (middle), and cells (right) in each class.

(f) Number of types (left) and cells (right) in each neuropil-defined family. Bold font indicates families that are entirely new, or almost entirely new. MLLPa (Medulla Lobula Lobula Plate amacrine) is a synonym for Am1.

(g) Number of types versus number of cells in a type. X-axis denotes type size (log-scale), and Y-axis the number of types with matching size. The peak near 800 consists of the “numerous” types, those with approximately the same cardinality as the ommatidia of the compound eye.